91517164 has 6 divisors (see below), whose sum is σ = 160155044. Its totient is φ = 45758580.

The previous prime is 91517159. The next prime is 91517203. The reversal of 91517164 is 46171519.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11439642 + ... + 11439649.

Almost surely, 2^91517164 is an apocalyptic number.

It is an amenable number.

91517164 is a deficient number, since it is larger than the sum of its proper divisors (68637880).

91517164 is a wasteful number, since it uses less digits than its factorization.

91517164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22879295 (or 22879293 counting only the distinct ones).

The product of its digits is 7560, while the sum is 34.

The square root of 91517164 is about 9566.4603694365. The cubic root of 91517164 is about 450.6446136150.

The spelling of 91517164 in words is "ninety-one million, five hundred seventeen thousand, one hundred sixty-four".