Fatto generale: 15845 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 15845 is an unremarkable number.
Trivia: 15845 is a boring number.
Data storica: May 19th is the day in 2010 that the Royal Thai Armed Forces concludes its crackdown on protests by forcing the surrender of United Front for Democracy Against Dictatorship leaders.