45175491 has 12 divisors (see below), whose sum is σ = 65888368. Its totient is φ = 29823984.

The previous prime is 45175469. The next prime is 45175513. The reversal of 45175491 is 19457154.

45175491 is a `hidden beast` number, since 4 + 517 + 54 + 91 = 666.

It is an interprime number because it is at equal distance from previous prime (45175469) and next prime (45175513).

It is not a de Polignac number, because 45175491 - 2⁹ = 45174979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45175411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23440 + ... + 25293.

Almost surely, 2^45175491 is an apocalyptic number.

45175491 is a deficient number, since it is larger than the sum of its proper divisors (20712877).

45175491 is a wasteful number, since it uses less digits than its factorization.

45175491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48842 (or 48839 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 45175491 is about 6721.2715314887. The cubic root of 45175491 is about 356.1511031115.

The spelling of 45175491 in words is "forty-five million, one hundred seventy-five thousand, four hundred ninety-one".