45723931 has 16 divisors (see below), whose sum is σ = 55116288. Its totient is φ = 37417600.

The previous prime is 45723901. The next prime is 45723947. The reversal of 45723931 is 13932754.

It is not a de Polignac number, because 45723931 - 2¹¹ = 45721883 is a prime.

It is a super-2 number, since 2×45723931² = 4181355732185522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45723901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1015 + ... + 9616.

It is an arithmetic number, because the mean of its divisors is an integer number (3444768).

Almost surely, 2^45723931 is an apocalyptic number.

45723931 is a deficient number, since it is larger than the sum of its proper divisors (9392357).

45723931 is a wasteful number, since it uses less digits than its factorization.

45723931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10682.

The product of its digits is 22680, while the sum is 34.

The square root of 45723931 is about 6761.9472787060. The cubic root of 45723931 is about 357.5865596390.

The spelling of 45723931 in words is "forty-five million, seven hundred twenty-three thousand, nine hundred thirty-one".