general_fact: 47132 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 47132 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 47132 is an uninteresting number.
historical_date: January 15th is the day in 1782 that Superintendent of Finance Robert Morris goes before the U.S. Congress to recommend establishment of a national mint and decimal coinage.