13097239 has 4 divisors (see below), whose sum is σ = 13119424. Its totient is φ = 13075056.

The previous prime is 13097209. The next prime is 13097257. The reversal of 13097239 is 93279031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13097239 - 2⁷ = 13097111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13097209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10182 + ... + 11395.

It is an arithmetic number, because the mean of its divisors is an integer number (3279856).

Almost surely, 2^13097239 is an apocalyptic number.

13097239 is a deficient number, since it is larger than the sum of its proper divisors (22185).

13097239 is an equidigital number, since it uses as much as digits as its factorization.

13097239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22184.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 13097239 is about 3619.0107764415. The cubic root of 13097239 is about 235.7182731758.

The spelling of 13097239 in words is "thirteen million, ninety-seven thousand, two hundred thirty-nine".