12916239 has 16 divisors (see below), whose sum is σ = 19859712. Its totient is φ = 7314048.

The previous prime is 12916231. The next prime is 12916247. The reversal of 12916239 is 93261921.

It is an interprime number because it is at equal distance from previous prime (12916231) and next prime (12916247).

It is not a de Polignac number, because 12916239 - 2³ = 12916231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12916231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349 + ... + 5094.

It is an arithmetic number, because the mean of its divisors is an integer number (1241232).

Almost surely, 2^12916239 is an apocalyptic number.

12916239 is a deficient number, since it is larger than the sum of its proper divisors (6943473).

12916239 is a wasteful number, since it uses less digits than its factorization.

12916239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566.

The product of its digits is 5832, while the sum is 33.

The square root of 12916239 is about 3593.9169439485. The cubic root of 12916239 is about 234.6273799034.

The spelling of 12916239 in words is "twelve million, nine hundred sixteen thousand, two hundred thirty-nine".