13239369 has 56 divisors (see below), whose sum is σ = 23503872. Its totient is φ = 7348320.

The previous prime is 13239361. The next prime is 13239389. The reversal of 13239369 is 96393231.

It is a happy number.

It is not a de Polignac number, because 13239369 - 2³ = 13239361 is a prime.

It is a super-2 number, since 2×13239369² = 350561783036322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13239361) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 104184 + ... + 104310.

It is an arithmetic number, because the mean of its divisors is an integer number (419712).

Almost surely, 2^13239369 is an apocalyptic number.

It is an amenable number.

13239369 is a deficient number, since it is larger than the sum of its proper divisors (10264503).

13239369 is a wasteful number, since it uses less digits than its factorization.

13239369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 154 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 13239369 is about 3638.5943714572. The cubic root of 13239369 is about 236.5678714358.

The spelling of 13239369 in words is "thirteen million, two hundred thirty-nine thousand, three hundred sixty-nine".