12344139 has 24 divisors (see below), whose sum is σ = 18450432. Its totient is φ = 7948080.

The previous prime is 12344089. The next prime is 12344161. The reversal of 12344139 is 93144321.

It is not a de Polignac number, because 12344139 - 2⁸ = 12343883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12344179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64534 + ... + 64724.

It is an arithmetic number, because the mean of its divisors is an integer number (768768).

Almost surely, 2^12344139 is an apocalyptic number.

12344139 is a deficient number, since it is larger than the sum of its proper divisors (6106293).

12344139 is a wasteful number, since it uses less digits than its factorization.

12344139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 404 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 12344139 is about 3513.4226901983. The cubic root of 12344139 is about 231.1108143196.

The spelling of 12344139 in words is "twelve million, three hundred forty-four thousand, one hundred thirty-nine".