45707731 has 2 divisors, whose sum is σ = 45707732. Its totient is φ = 45707730.

The previous prime is 45707723. The next prime is 45707771. The reversal of 45707731 is 13770754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45707731 - 2³ = 45707723 is a prime.

It is a super-2 number, since 2×45707731² = 4178393346336722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45707771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22853865 + 22853866.

It is an arithmetic number, because the mean of its divisors is an integer number (22853866).

Almost surely, 2^45707731 is an apocalyptic number.

45707731 is a deficient number, since it is larger than the sum of its proper divisors (1).

45707731 is an equidigital number, since it uses as much as digits as its factorization.

45707731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 45707731 is about 6760.7492927929. The cubic root of 45707731 is about 357.5443236485.

The spelling of 45707731 in words is "forty-five million, seven hundred seven thousand, seven hundred thirty-one".