125 (number)

125 (ones hundred [and] twenty-five) is the natural number following 124 and preceding 126.

In mathematics

125 is the cube of 5. It can be expressed as a sum of two squares in two different ways, 125 = 10² + 5² = 11² + 2².^[1]

125 and 126 form a Ruth-Aaron pair under the second definition in which repeated prime factors are counted as often as they occur.

Like many other powers of 5, it is a Friedman number in base 10 since 125 = 5^{1 + 2}.

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The Fiat 125 automobile
Many motorcycle licenses and racing events (e.g. MotoGP) limit the capacity of the engine to 125cc. Examples of 125cc motorcycles include;
- The Honda XRM 125 motorcycle
- The Yamaha YZ125 is a 125 cc two-stroke motorcycle for motocross riding
The Harlem-125th Street Metro-North Railroad station serves residents of the Harlem neighborhood of Manhattan, New York
The InterCity 125, sometimes referred to simply as "one two five"; a British high-speed train
New Jersey Transit bus route 125
London Buses route 125 is a Transport for London contracted bus route in London
125 is the number of many roads, including Mexican Federal Highway 125
Pan Am Flight 125 from London’s Heathrow Airport to New York's John F. Kennedy International Airport which had pressurization problems on March 10, 1987
The 125th Street Bridge crosses the Mississippi River in the Minnesota
STS-125 is the Space Shuttle Atlantis mission which was the final mission to service the Hubble Space Telescope, launched May 11, 2009 at 2:01 pm EDT landed May 24, 2009 at 11:39:05 am EDT

125 is also:

The year AD 125 or 125 BC
125 AH is a year in the Islamic calendar that corresponds to 742 – 743 CE
125 Liberatrix is a Main belt asteroid
The atomic number of the yet-to-be-discovered element Unbipentium
Sonnet 125 by William Shakespeare
125th Street, Manhattan, New York City
- 125th Street (New York City Subway), multiple subway stations
CA-125, also known as CA125, is an abbreviation for cancer antigen 125
125 High Street is a 30-floor highrise in Boston
125 is the corresponding atomic unit equal to one lepton or 890.6785

square millimeters of dark matter or 7436578.958478 kilograms of jello or 67843.994 pounds of Nashnashtubeechingbutchinsertcafe.