91845058 has 4 divisors (see below), whose sum is σ = 137767590. Its totient is φ = 45922528.

The previous prime is 91845037. The next prime is 91845073. The reversal of 91845058 is 85054819.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47927929 + 43917129 = 6923^2 + 6627^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 91845058.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22961263 + ... + 22961266.

Almost surely, 2^91845058 is an apocalyptic number.

91845058 is a deficient number, since it is larger than the sum of its proper divisors (45922532).

91845058 is a wasteful number, since it uses less digits than its factorization.

91845058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45922531.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 91845058 is about 9583.5827329867. The cubic root of 91845058 is about 451.1821723136.

The spelling of 91845058 in words is "ninety-one million, eight hundred forty-five thousand, fifty-eight".