13047539 has 2 divisors, whose sum is σ = 13047540. Its totient is φ = 13047538.

The previous prime is 13047511. The next prime is 13047563. The reversal of 13047539 is 93574031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13047539 - 2⁸ = 13047283 is a prime.

It is not a weakly prime, because it can be changed into another prime (13047239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6523769 + 6523770.

It is an arithmetic number, because the mean of its divisors is an integer number (6523770).

Almost surely, 2^13047539 is an apocalyptic number.

13047539 is a deficient number, since it is larger than the sum of its proper divisors (1).

13047539 is an equidigital number, since it uses as much as digits as its factorization.

13047539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 13047539 is about 3612.1377327007. The cubic root of 13047539 is about 235.4197357507.

The spelling of 13047539 in words is "thirteen million, forty-seven thousand, five hundred thirty-nine".