39249513 has 12 divisors (see below), whose sum is σ = 56779008. Its totient is φ = 26127000.

The previous prime is 39249493. The next prime is 39249527. The reversal of 39249513 is 31594293.

It is a happy number.

It is not a de Polignac number, because 39249513 - 2⁸ = 39249257 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (39249113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3856 + ... + 9662.

It is an arithmetic number, because the mean of its divisors is an integer number (4731584).

Almost surely, 2^39249513 is an apocalyptic number.

It is an amenable number.

39249513 is a deficient number, since it is larger than the sum of its proper divisors (17529495).

39249513 is a wasteful number, since it uses less digits than its factorization.

39249513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6564 (or 6561 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 39249513 is about 6264.9431761190. The cubic root of 39249513 is about 339.8428137319.

The spelling of 39249513 in words is "thirty-nine million, two hundred forty-nine thousand, five hundred thirteen".