13120239 has 16 divisors (see below), whose sum is σ = 19217664. Its totient is φ = 7896000.

The previous prime is 13120231. The next prime is 13120253. The reversal of 13120239 is 93202131.

It is a happy number.

It is not a de Polignac number, because 13120239 - 2³ = 13120231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3667 + ... + 6299.

It is an arithmetic number, because the mean of its divisors is an integer number (1201104).

Almost surely, 2^13120239 is an apocalyptic number.

13120239 is a deficient number, since it is larger than the sum of its proper divisors (6097425).

13120239 is a wasteful number, since it uses less digits than its factorization.

13120239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13120239 is about 3622.1870465231. The cubic root of 13120239 is about 235.8561737365.

The spelling of 13120239 in words is "thirteen million, one hundred twenty thousand, two hundred thirty-nine".