12371239 has 2 divisors, whose sum is σ = 12371240. Its totient is φ = 12371238.

The previous prime is 12371231. The next prime is 12371311. The reversal of 12371239 is 93217321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12371239 - 2³ = 12371231 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12371231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6185619 + 6185620.

It is an arithmetic number, because the mean of its divisors is an integer number (6185620).

Almost surely, 2^12371239 is an apocalyptic number.

12371239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12371239 is an equidigital number, since it uses as much as digits as its factorization.

12371239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The square root of 12371239 is about 3517.2772139824. The cubic root of 12371239 is about 231.2798155859.

The spelling of 12371239 in words is "twelve million, three hundred seventy-one thousand, two hundred thirty-nine".