Fait mathématique: 5187 is the only number n known for which f(n-1) = f(n) = f(n+1).
Culture générale: 5187 is a boring number.
Date historique: March 14th is the day in 1903 that the Hay-Herran Treaty, granting the United States the right to build the Panama Canal, is ratified by the United States Senate.