Fatto generale: 64145 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 64145 is an unremarkable number.
Trivia: 64145 is an uninteresting number.
Data storica: August 15th is the day in 1971 that President Richard Nixon completes the break from the gold standard by ending convertibility of the United States dollar into gold by foreign investors.