13239235 has 4 divisors (see below), whose sum is σ = 15887088. Its totient is φ = 10591384.

The previous prime is 13239223. The next prime is 13239251. The reversal of 13239235 is 53293231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53293231 = 23 ⋅2317097.

It is a cyclic number.

It is not a de Polignac number, because 13239235 - 2⁵ = 13239203 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1323919 + ... + 1323928.

It is an arithmetic number, because the mean of its divisors is an integer number (3971772).

Almost surely, 2^13239235 is an apocalyptic number.

13239235 is a deficient number, since it is larger than the sum of its proper divisors (2647853).

13239235 is an equidigital number, since it uses as much as digits as its factorization.

13239235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647852.

The product of its digits is 4860, while the sum is 28.

The square root of 13239235 is about 3638.5759577065. The cubic root of 13239235 is about 236.5670733061.

The spelling of 13239235 in words is "thirteen million, two hundred thirty-nine thousand, two hundred thirty-five".