45291937 has 2 divisors, whose sum is σ = 45291938. Its totient is φ = 45291936.

The previous prime is 45291929. The next prime is 45291989. The reversal of 45291937 is 73919254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39488656 + 5803281 = 6284^2 + 2409^2 .

It is a cyclic number.

It is not a de Polignac number, because 45291937 - 2³ = 45291929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45291937.

It is not a weakly prime, because it can be changed into another prime (45291907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22645968 + 22645969.

It is an arithmetic number, because the mean of its divisors is an integer number (22645969).

Almost surely, 2^45291937 is an apocalyptic number.

It is an amenable number.

45291937 is a deficient number, since it is larger than the sum of its proper divisors (1).

45291937 is an equidigital number, since it uses as much as digits as its factorization.

45291937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 40.

The square root of 45291937 is about 6729.9284543002. The cubic root of 45291937 is about 356.4568499358.

The spelling of 45291937 in words is "forty-five million, two hundred ninety-one thousand, nine hundred thirty-seven".