12939235 has 4 divisors (see below), whose sum is σ = 15527088. Its totient is φ = 10351384.

The previous prime is 12939217. The next prime is 12939257. The reversal of 12939235 is 53293921.

12939235 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53293921 = 23 ⋅2317127.

It is a cyclic number.

It is not a de Polignac number, because 12939235 - 2⁵ = 12939203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12939235.

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, 1293919 + ... + 1293928.

It is an arithmetic number, because the mean of its divisors is an integer number (3881772).

Almost surely, 2^12939235 is an apocalyptic number.

12939235 is a deficient number, since it is larger than the sum of its proper divisors (2587853).

12939235 is an equidigital number, since it uses as much as digits as its factorization.

12939235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587852.

The product of its digits is 14580, while the sum is 34.

The square root of 12939235 is about 3597.1148160713. The cubic root of 12939235 is about 234.7665404427.

The spelling of 12939235 in words is "twelve million, nine hundred thirty-nine thousand, two hundred thirty-five".