General fact: 5345 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 5345 is an unremarkable number.
Trivia: 5345 is an unremarkable number.
Historical date: August 19th is the day in 2002 that a Russian Mi-26 helicopter carrying troops is hit by a Chechen missile outside of Grozny, killing 118 soldiers.