91552113 has 10 divisors (see below), whose sum is σ = 136763154. Its totient is φ = 61034688.

The previous prime is 91552093. The next prime is 91552151. The reversal of 91552113 is 31125519.

It can be written as a sum of positive squares in only one way, i.e., 66781584 + 24770529 = 8172^2 + 4977^2 .

It is not a de Polignac number, because 91552113 - 2⁸ = 91551857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (91552183) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 565056 + ... + 565217.

Almost surely, 2^91552113 is an apocalyptic number.

It is an amenable number.

91552113 is a deficient number, since it is larger than the sum of its proper divisors (45211041).

91552113 is a wasteful number, since it uses less digits than its factorization.

91552113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130285 (or 1130276 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 91552113 is about 9568.2868372557. The cubic root of 91552113 is about 450.7019710675.

The spelling of 91552113 in words is "ninety-one million, five hundred fifty-two thousand, one hundred thirteen".