General fact: 13540 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 13540 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 13540 is a boring number.
Historical date: January 25th is the day in 1704 that the Battle of Ayubale takes place, leading to the destruction of most of the Spanish missions in Florida.