91164612 has 48 divisors (see below), whose sum is σ = 265208832. Its totient is φ = 23678880.

The previous prime is 91164581. The next prime is 91164613. The reversal of 91164612 is 21646119.

It is a happy number.

It is a super-2 number, since 2×91164612² = 16621972962221088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91164612.

It is not an unprimeable number, because it can be changed into a prime (91164613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48408 + ... + 50255.

It is an arithmetic number, because the mean of its divisors is an integer number (5525184).

Almost surely, 2^91164612 is an apocalyptic number.

It is an amenable number.

91164612 is an abundant number, since it is smaller than the sum of its proper divisors (174044220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91164612 is a wasteful number, since it uses less digits than its factorization.

91164612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98688 (or 98686 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 91164612 is about 9548.0161290186. The cubic root of 91164612 is about 450.0651954924.

The spelling of 91164612 in words is "ninety-one million, one hundred sixty-four thousand, six hundred twelve".