13290239 has 2 divisors, whose sum is σ = 13290240. Its totient is φ = 13290238.

The previous prime is 13290229. The next prime is 13290283. The reversal of 13290239 is 93209231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13290239 - 2⁴ = 13290223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13290229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6645119 + 6645120.

It is an arithmetic number, because the mean of its divisors is an integer number (6645120).

Almost surely, 2^13290239 is an apocalyptic number.

13290239 is a deficient number, since it is larger than the sum of its proper divisors (1).

13290239 is an equidigital number, since it uses as much as digits as its factorization.

13290239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 13290239 is about 3645.5780062975. The cubic root of 13290239 is about 236.8704746619.

The spelling of 13290239 in words is "thirteen million, two hundred ninety thousand, two hundred thirty-nine".