Fatto generale: 81353 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 81353 is a boring number.
Trivia: 81353 is an unremarkable number.
Data storica: September 26th is the day in 1908 that Ed Reulbach becomes the first and only pitcher to throw two shutouts in one day against the Brooklyn Dodgers.