45907931 has 16 divisors (see below), whose sum is σ = 50239488. Its totient is φ = 41861160.

The previous prime is 45907921. The next prime is 45907937. The reversal of 45907931 is 13970954.

It is a happy number.

It is not a de Polignac number, because 45907931 - 2²² = 41713627 is a prime.

It is a super-2 number, since 2×45907931² = 4215076257401522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45907937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685160 + ... + 685226.

It is an arithmetic number, because the mean of its divisors is an integer number (3139968).

Almost surely, 2^45907931 is an apocalyptic number.

45907931 is a deficient number, since it is larger than the sum of its proper divisors (4331557).

45907931 is an frugal number, since it uses more digits than its factorization.

45907931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 45907931 is about 6775.5391667380. The cubic root of 45907931 is about 358.0655784280.

It can be divided in two parts, 4590 and 7931, that added together give a palindrome (12521).

The spelling of 45907931 in words is "forty-five million, nine hundred seven thousand, nine hundred thirty-one".