12539433 has 16 divisors (see below), whose sum is σ = 17089280. Its totient is φ = 8176896.

The previous prime is 12539389. The next prime is 12539467. The reversal of 12539433 is 33493521.

It is not a de Polignac number, because 12539433 - 2⁶ = 12539369 is a prime.

It is a super-2 number, since 2×12539433² = 314474759922978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12539433.

It is not an unprimeable number, because it can be changed into a prime (12539333) 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, 37041 + ... + 37377.

It is an arithmetic number, because the mean of its divisors is an integer number (1068080).

Almost surely, 2^12539433 is an apocalyptic number.

It is an amenable number.

12539433 is a deficient number, since it is larger than the sum of its proper divisors (4549847).

12539433 is a wasteful number, since it uses less digits than its factorization.

12539433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its digits is 9720, while the sum is 30.

The square root of 12539433 is about 3541.1061831015. The cubic root of 12539433 is about 232.3232278708.

The spelling of 12539433 in words is "twelve million, five hundred thirty-nine thousand, four hundred thirty-three".