45664013 has 4 divisors (see below), whose sum is σ = 45678780. Its totient is φ = 45649248.

The previous prime is 45664007. The next prime is 45664063. The reversal of 45664013 is 31046654.

It is a happy number.

45664013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11710084 + 33953929 = 3422^2 + 5827^2 .

It is a cyclic number.

It is not a de Polignac number, because 45664013 - 2⁶ = 45663949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45664063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770 + ... + 9587.

It is an arithmetic number, because the mean of its divisors is an integer number (11419695).

Almost surely, 2^45664013 is an apocalyptic number.

It is an amenable number.

45664013 is a deficient number, since it is larger than the sum of its proper divisors (14767).

45664013 is a wasteful number, since it uses less digits than its factorization.

45664013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14766.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 45664013 is about 6757.5152977999. The cubic root of 45664013 is about 357.4302940040.

The spelling of 45664013 in words is "forty-five million, six hundred sixty-four thousand, thirteen".