Hecho general: 81518 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 81518 is a boring number.
Trivia: 81518 is an uninteresting number.
Fecha histórica: March 10th is the day in 2008 that the New York Times reveals that Governor of New York Eliot Spitzer had patronized a prostitution service.