13397539 has 2 divisors, whose sum is σ = 13397540. Its totient is φ = 13397538.

The previous prime is 13397537. The next prime is 13397551. The reversal of 13397539 is 93579331.

13397539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13397539 - 2¹ = 13397537 is a prime.

Together with 13397537, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13397533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6698769 + 6698770.

It is an arithmetic number, because the mean of its divisors is an integer number (6698770).

Almost surely, 2^13397539 is an apocalyptic number.

13397539 is a deficient number, since it is larger than the sum of its proper divisors (1).

13397539 is an equidigital number, since it uses as much as digits as its factorization.

13397539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76545, while the sum is 40.

The square root of 13397539 is about 3660.2648811254. The cubic root of 13397539 is about 237.5062321541.

The spelling of 13397539 in words is "thirteen million, three hundred ninety-seven thousand, five hundred thirty-nine".