Fatto generale: 14509 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 14509 is an unremarkable number.
Trivia: 14509 is a boring number.
Data storica: September 21st is the day in 1981 that Sandra Day O'Connor is unanimously approved by the U.S. Senate as the first female Supreme Court justice.