12755439 has 6 divisors (see below), whose sum is σ = 18424536. Its totient is φ = 8503620.

The previous prime is 12755437. The next prime is 12755453. The reversal of 12755439 is 93455721.

It is not a de Polignac number, because 12755439 - 2¹ = 12755437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12755437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 708627 + ... + 708644.

It is an arithmetic number, because the mean of its divisors is an integer number (3070756).

Almost surely, 2^12755439 is an apocalyptic number.

12755439 is a deficient number, since it is larger than the sum of its proper divisors (5669097).

12755439 is a wasteful number, since it uses less digits than its factorization.

12755439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417277 (or 1417274 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 12755439 is about 3571.4757454027. The cubic root of 12755439 is about 233.6496510363.

The spelling of 12755439 in words is "twelve million, seven hundred fifty-five thousand, four hundred thirty-nine".