91313032 has 8 divisors (see below), whose sum is σ = 171211950. Its totient is φ = 45656512.

The previous prime is 91313009. The next prime is 91313071. The reversal of 91313032 is 23031319.

It can be written as a sum of positive squares in only one way, i.e., 48358116 + 42954916 = 6954^2 + 6554^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 91312994 and 91313012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5707057 + ... + 5707072.

Almost surely, 2^91313032 is an apocalyptic number.

It is an amenable number.

91313032 is a deficient number, since it is larger than the sum of its proper divisors (79898918).

91313032 is a wasteful number, since it uses less digits than its factorization.

91313032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11414135 (or 11414131 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 91313032 is about 9555.7852633889. The cubic root of 91313032 is about 450.3093050476.

The spelling of 91313032 in words is "ninety-one million, three hundred thirteen thousand, thirty-two".