12539393 has 8 divisors (see below), whose sum is σ = 13176000. Its totient is φ = 11910448.

The previous prime is 12539389. The next prime is 12539467. The reversal of 12539393 is 39393521.

It is a happy number.

12539393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12539393 - 2² = 12539389 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1598 + ... + 5256.

It is an arithmetic number, because the mean of its divisors is an integer number (1647000).

Almost surely, 2^12539393 is an apocalyptic number.

It is an amenable number.

12539393 is a deficient number, since it is larger than the sum of its proper divisors (636607).

12539393 is a wasteful number, since it uses less digits than its factorization.

12539393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831.

The product of its digits is 21870, while the sum is 35.

The square root of 12539393 is about 3541.1005351444. The cubic root of 12539393 is about 232.3229808384.

The spelling of 12539393 in words is "twelve million, five hundred thirty-nine thousand, three hundred ninety-three".