91113001 has 24 divisors (see below), whose sum is σ = 109970784. Its totient is φ = 75216960.

The previous prime is 91112941. The next prime is 91113017. The reversal of 91113001 is 10031119.

It is a happy number.

It is not a de Polignac number, because 91113001 - 2¹⁵ = 91080233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91113031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174621 + ... + 175141.

It is an arithmetic number, because the mean of its divisors is an integer number (4582116).

Almost surely, 2^91113001 is an apocalyptic number.

It is an amenable number.

91113001 is a deficient number, since it is larger than the sum of its proper divisors (18857783).

91113001 is a wasteful number, since it uses less digits than its factorization.

91113001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 16.

The square root of 91113001 is about 9545.3130383450. The cubic root of 91113001 is about 449.9802476927.

The spelling of 91113001 in words is "ninety-one million, one hundred thirteen thousand, one".