general_fact: 81458 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 81458 is an uninteresting number.
trivia: 81458 is an unremarkable number.
historical_date: January 9th is the day in 2005 that Mahmoud Abbas wins the election to replace Yasser Arafat as President of the Palestinian National Authority.