45239013 has 16 divisors (see below), whose sum is σ = 69184000. Its totient is φ = 29185920.

The previous prime is 45239009. The next prime is 45239021. The reversal of 45239013 is 31093254.

45239013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45239013 - 2² = 45239009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45239063) 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 15 ways as a sum of consecutive naturals, for example, 26188 + ... + 27861.

It is an arithmetic number, because the mean of its divisors is an integer number (4324000).

Almost surely, 2^45239013 is an apocalyptic number.

It is an amenable number.

45239013 is a deficient number, since it is larger than the sum of its proper divisors (23944987).

45239013 is a wasteful number, since it uses less digits than its factorization.

45239013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54089 (or 54083 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 45239013 is about 6725.9953166799. The cubic root of 45239013 is about 356.3179549038.

The spelling of 45239013 in words is "forty-five million, two hundred thirty-nine thousand, thirteen".