Hecho general: 18545 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 18545 is an uninteresting number.
Trivia: 18545 is an uninteresting number.
Fecha histórica: October 9th is the day in 1911 that an accidental bomb explosion in Hankou, Wuhan, China leads to the ultimate fall of the Qing Empire.