91112975 has 12 divisors (see below), whose sum is σ = 113873664. Its totient is φ = 72313920.

The previous prime is 91112941. The next prime is 91113017. The reversal of 91112975 is 57921119.

It is not a de Polignac number, because 91112975 - 2⁸ = 91112719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11174 + ... + 17523.

It is an arithmetic number, because the mean of its divisors is an integer number (9489472).

Almost surely, 2^91112975 is an apocalyptic number.

91112975 is a deficient number, since it is larger than the sum of its proper divisors (22760689).

91112975 is a wasteful number, since it uses less digits than its factorization.

91112975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28834 (or 28829 counting only the distinct ones).

The product of its digits is 5670, while the sum is 35.

The square root of 91112975 is about 9545.3116764200. The cubic root of 91112975 is about 449.9802048906.

The spelling of 91112975 in words is "ninety-one million, one hundred twelve thousand, nine hundred seventy-five".