45436637 has 2 divisors, whose sum is σ = 45436638. Its totient is φ = 45436636.

The previous prime is 45436627. The next prime is 45436687. The reversal of 45436637 is 73663454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28879876 + 16556761 = 5374^2 + 4069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45436637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45436637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45436627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22718318 + 22718319.

It is an arithmetic number, because the mean of its divisors is an integer number (22718319).

Almost surely, 2^45436637 is an apocalyptic number.

It is an amenable number.

45436637 is a deficient number, since it is larger than the sum of its proper divisors (1).

45436637 is an equidigital number, since it uses as much as digits as its factorization.

45436637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 38.

The square root of 45436637 is about 6740.6703672558. The cubic root of 45436637 is about 356.8360526362.

The spelling of 45436637 in words is "forty-five million, four hundred thirty-six thousand, six hundred thirty-seven".