45687613 has 2 divisors, whose sum is σ = 45687614. Its totient is φ = 45687612.

The previous prime is 45687601. The next prime is 45687641. The reversal of 45687613 is 31678654.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38601369 + 7086244 = 6213^2 + 2662^2 .

It is a cyclic number.

It is not a de Polignac number, because 45687613 - 2⁵ = 45687581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45687413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22843806 + 22843807.

It is an arithmetic number, because the mean of its divisors is an integer number (22843807).

Almost surely, 2^45687613 is an apocalyptic number.

It is an amenable number.

45687613 is a deficient number, since it is larger than the sum of its proper divisors (1).

45687613 is an equidigital number, since it uses as much as digits as its factorization.

45687613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 45687613 is about 6759.2612762047. The cubic root of 45687613 is about 357.4918589112.

The spelling of 45687613 in words is "forty-five million, six hundred eighty-seven thousand, six hundred thirteen".