45899931 has 16 divisors (see below), whose sum is σ = 76301568. Its totient is φ = 23844000.

The previous prime is 45899879. The next prime is 45899939. The reversal of 45899931 is 13999854.

45899931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45899931 - 2⁹ = 45899419 is a prime.

It is a super-2 number, since 2×45899931² = 4213607331609522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45899939) 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 in 15 ways as a sum of consecutive naturals, for example, 99120 + ... + 99581.

It is an arithmetic number, because the mean of its divisors is an integer number (4768848).

Almost surely, 2^45899931 is an apocalyptic number.

45899931 is a deficient number, since it is larger than the sum of its proper divisors (30401637).

45899931 is a wasteful number, since it uses less digits than its factorization.

45899931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198722.

The product of its digits is 349920, while the sum is 48.

The square root of 45899931 is about 6774.9487820942. The cubic root of 45899931 is about 358.0447781656.

The spelling of 45899931 in words is "forty-five million, eight hundred ninety-nine thousand, nine hundred thirty-one".