Fait mathématique: 5135 is not the sum of a square, a cube, a 4^{th} power, and a 5^{th} power.
Culture générale: 5135 is an unremarkable number.
Date historique: January 21st is the day in 1971 that the current Emley Moor transmitting station, the tallest free-standing structure in the United Kingdom, begins transmitting UHF broadcasts.