91164115 has 64 divisors (see below), whose sum is σ = 140652288. Its totient is φ = 55296000.

The previous prime is 91164103. The next prime is 91164121. The reversal of 91164115 is 51146119.

It is not a de Polignac number, because 91164115 - 2⁹ = 91163603 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 902565 + ... + 902665.

It is an arithmetic number, because the mean of its divisors is an integer number (2197692).

Almost surely, 2^91164115 is an apocalyptic number.

91164115 is a deficient number, since it is larger than the sum of its proper divisors (49488173).

91164115 is a wasteful number, since it uses less digits than its factorization.

91164115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208.

The product of its digits is 1080, while the sum is 28.

The square root of 91164115 is about 9547.9901026342. The cubic root of 91164115 is about 450.0643776209.

It can be divided in two parts, 9116 and 4115, that added together give a palindrome (13231).

The spelling of 91164115 in words is "ninety-one million, one hundred sixty-four thousand, one hundred fifteen".