45169931 has 2 divisors, whose sum is σ = 45169932. Its totient is φ = 45169930.

The previous prime is 45169919. The next prime is 45169937. The reversal of 45169931 is 13996154.

45169931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45169931 is a prime.

It is a super-2 number, since 2×45169931² = 4080645333089522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (45169937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22584965 + 22584966.

It is an arithmetic number, because the mean of its divisors is an integer number (22584966).

Almost surely, 2^45169931 is an apocalyptic number.

45169931 is a deficient number, since it is larger than the sum of its proper divisors (1).

45169931 is an equidigital number, since it uses as much as digits as its factorization.

45169931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 38.

The square root of 45169931 is about 6720.8579065473. The cubic root of 45169931 is about 356.1364913435.

The spelling of 45169931 in words is "forty-five million, one hundred sixty-nine thousand, nine hundred thirty-one".