45637643 has 2 divisors, whose sum is σ = 45637644. Its totient is φ = 45637642.

The previous prime is 45637637. The next prime is 45637651. The reversal of 45637643 is 34673654.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45637643 - 2¹² = 45633547 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 45637597 and 45637606.

It is not a weakly prime, because it can be changed into another prime (45697643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22818821 + 22818822.

It is an arithmetic number, because the mean of its divisors is an integer number (22818822).

Almost surely, 2^45637643 is an apocalyptic number.

45637643 is a deficient number, since it is larger than the sum of its proper divisors (1).

45637643 is an equidigital number, since it uses as much as digits as its factorization.

45637643 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 45637643 is about 6755.5638550753. The cubic root of 45637643 is about 357.3614779484.

The spelling of 45637643 in words is "forty-five million, six hundred thirty-seven thousand, six hundred forty-three".