45634609 has 2 divisors, whose sum is σ = 45634610. Its totient is φ = 45634608.

The previous prime is 45634601. The next prime is 45634627. The reversal of 45634609 is 90643654.

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., 23280625 + 22353984 = 4825^2 + 4728^2 .

It is a cyclic number.

It is not a de Polignac number, because 45634609 - 2³ = 45634601 is a prime.

It is not a weakly prime, because it can be changed into another prime (45634601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22817304 + 22817305.

It is an arithmetic number, because the mean of its divisors is an integer number (22817305).

Almost surely, 2^45634609 is an apocalyptic number.

It is an amenable number.

45634609 is a deficient number, since it is larger than the sum of its proper divisors (1).

45634609 is an equidigital number, since it uses as much as digits as its factorization.

45634609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 45634609 is about 6755.3392956979. The cubic root of 45634609 is about 357.3535586178.

The spelling of 45634609 in words is "forty-five million, six hundred thirty-four thousand, six hundred nine".