13017239 has 2 divisors, whose sum is σ = 13017240. Its totient is φ = 13017238.

The previous prime is 13017209. The next prime is 13017247. The reversal of 13017239 is 93271031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13017239 is a prime.

It is a super-2 number, since 2×13017239² = 338897022366242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13017209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6508619 + 6508620.

It is an arithmetic number, because the mean of its divisors is an integer number (6508620).

Almost surely, 2^13017239 is an apocalyptic number.

13017239 is a deficient number, since it is larger than the sum of its proper divisors (1).

13017239 is an equidigital number, since it uses as much as digits as its factorization.

13017239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 13017239 is about 3607.9411026235. The cubic root of 13017239 is about 235.2373578862.

The spelling of 13017239 in words is "thirteen million, seventeen thousand, two hundred thirty-nine".