12939455 has 16 divisors (see below), whose sum is σ = 16645824. Its totient is φ = 9630720.

The previous prime is 12939449. The next prime is 12939457. The reversal of 12939455 is 55493921.

It is not a de Polignac number, because 12939455 - 2⁶ = 12939391 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 (12939457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2735 + ... + 5775.

It is an arithmetic number, because the mean of its divisors is an integer number (1040364).

Almost surely, 2^12939455 is an apocalyptic number.

12939455 is a deficient number, since it is larger than the sum of its proper divisors (3706369).

12939455 is a wasteful number, since it uses less digits than its factorization.

12939455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106.

The product of its digits is 48600, while the sum is 38.

The square root of 12939455 is about 3597.1453960050. The cubic root of 12939455 is about 234.7678709785.

The spelling of 12939455 in words is "twelve million, nine hundred thirty-nine thousand, four hundred fifty-five".