12157339 has 4 divisors (see below), whose sum is σ = 12170080. Its totient is φ = 12144600.

The previous prime is 12157337. The next prime is 12157367. The reversal of 12157339 is 93375121.

12157339 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 12157339 - 2¹ = 12157337 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 12157339.

It is not an unprimeable number, because it can be changed into a prime (12157333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4812 + ... + 6889.

It is an arithmetic number, because the mean of its divisors is an integer number (3042520).

Almost surely, 2^12157339 is an apocalyptic number.

12157339 is a deficient number, since it is larger than the sum of its proper divisors (12741).

12157339 is a wasteful number, since it uses less digits than its factorization.

12157339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12740.

The product of its digits is 5670, while the sum is 31.

The square root of 12157339 is about 3486.7375869142. The cubic root of 12157339 is about 229.9391080140.

The spelling of 12157339 in words is "twelve million, one hundred fifty-seven thousand, three hundred thirty-nine".