91075522 has 8 divisors (see below), whose sum is σ = 136655676. Its totient is φ = 45523632.

The previous prime is 91075507. The next prime is 91075547. The reversal of 91075522 is 22557019.

It can be written as a sum of positive squares in 2 ways, for example, as 89510521 + 1565001 = 9461^2 + 1251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5368 + ... + 14524.

Almost surely, 2^91075522 is an apocalyptic number.

91075522 is a deficient number, since it is larger than the sum of its proper divisors (45580154).

91075522 is a wasteful number, since it uses less digits than its factorization.

91075522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14132.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 91075522 is about 9543.3496215951. The cubic root of 91075522 is about 449.9185399873.

The spelling of 91075522 in words is "ninety-one million, seventy-five thousand, five hundred twenty-two".