45808537 has 2 divisors, whose sum is σ = 45808538. Its totient is φ = 45808536.

The previous prime is 45808513. The next prime is 45808549. The reversal of 45808537 is 73580854.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29333056 + 16475481 = 5416^2 + 4059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45808537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45808537.

It is not a weakly prime, because it can be changed into another prime (45808507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22904268 + 22904269.

It is an arithmetic number, because the mean of its divisors is an integer number (22904269).

Almost surely, 2^45808537 is an apocalyptic number.

It is an amenable number.

45808537 is a deficient number, since it is larger than the sum of its proper divisors (1).

45808537 is an equidigital number, since it uses as much as digits as its factorization.

45808537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 45808537 is about 6768.2004255193. The cubic root of 45808537 is about 357.8069790609.

The spelling of 45808537 in words is "forty-five million, eight hundred eight thousand, five hundred thirty-seven".