Fatto matematico: 1275 is the smallest number so that it and its neighbors are products of two primes and the square of a prime.
Trivia: 1275 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: June 28th is the day in 1902 that the U.S. Congress passes the Spooner Act, authorizing President Theodore Roosevelt to acquire rights from Colombia for the Panama Canal.