45605431 has 2 divisors, whose sum is σ = 45605432. Its totient is φ = 45605430.

The previous prime is 45605419. The next prime is 45605447. The reversal of 45605431 is 13450654.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45605431 - 2²¹ = 43508279 is a prime.

It is a super-2 number, since 2×45605431² = 4159710673391522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45605431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45605411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22802715 + 22802716.

It is an arithmetic number, because the mean of its divisors is an integer number (22802716).

Almost surely, 2^45605431 is an apocalyptic number.

45605431 is a deficient number, since it is larger than the sum of its proper divisors (1).

45605431 is an equidigital number, since it uses as much as digits as its factorization.

45605431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 45605431 is about 6753.1793253252. The cubic root of 45605431 is about 357.2773804320.

The spelling of 45605431 in words is "forty-five million, six hundred five thousand, four hundred thirty-one".