Fatto matematico: 1345 is the number of permutations of 8 elements that have 5^{th} power equal to the identity permutation.
Trivia: 1345 is an uninteresting number.
Data storica: September 6th is the day in 1985 that Midwest Express Airlines Flight 105, a Douglas DC-9 crashes just after takeoff from Milwaukee, Wisconsin, killing 31.