this number is an even number, is a composite number, is a deficient number as 100 is less than this number, is the smallest Markov number that is neither a Fibonacci number nor a Pell number, is an odious number, is a nontotient, is a square-free number, is the smallest number written as the sum of three squares in five ways, is the number of irreducible representations of the Monster group, and is a term of the sequence in the Lucas-Lehmer primality test for testing Mersenne numbers.