91113033 has 16 divisors (see below), whose sum is σ = 133122816. Its totient is φ = 54972240.

The previous prime is 91113031. The next prime is 91113049. The reversal of 91113033 is 33031119.

It is not a de Polignac number, because 91113033 - 2¹ = 91113031 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 15 ways as a sum of consecutive naturals, for example, 1410 + ... + 13572.

It is an arithmetic number, because the mean of its divisors is an integer number (8320176).

Almost surely, 2^91113033 is an apocalyptic number.

It is an amenable number.

91113033 is a deficient number, since it is larger than the sum of its proper divisors (42009783).

91113033 is a wasteful number, since it uses less digits than its factorization.

91113033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12404.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 91113033 is about 9545.3147145602. The cubic root of 91113033 is about 449.9803003722.

The spelling of 91113033 in words is "ninety-one million, one hundred thirteen thousand, thirty-three".