13521402239 has 2 divisors, whose sum is σ = 13521402240. Its totient is φ = 13521402238.

The previous prime is 13521402227. The next prime is 13521402287. The reversal of 13521402239 is 93220412531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13521402239 - 2⁸ = 13521401983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13521402299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760701119 + 6760701120.

It is an arithmetic number, because the mean of its divisors is an integer number (6760701120).

Almost surely, 2^13521402239 is an apocalyptic number.

13521402239 is a deficient number, since it is larger than the sum of its proper divisors (1).

13521402239 is an equidigital number, since it uses as much as digits as its factorization.

13521402239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 13521402239 in words is "thirteen billion, five hundred twenty-one million, four hundred two thousand, two hundred thirty-nine".