Fatto matematico: 8154 is a value of n for which |cos(n)| is smaller than any previous integer.
Trivia: 8154 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: April 28th is the day in 1977 that the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure is signed.