12444239 has 2 divisors, whose sum is σ = 12444240. Its totient is φ = 12444238.

The previous prime is 12444193. The next prime is 12444251. The reversal of 12444239 is 93244421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12444239 - 2¹² = 12440143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12444139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222119 + 6222120.

It is an arithmetic number, because the mean of its divisors is an integer number (6222120).

Almost surely, 2^12444239 is an apocalyptic number.

12444239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444239 is an equidigital number, since it uses as much as digits as its factorization.

12444239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 12444239 is about 3527.6392956197. The cubic root of 12444239 is about 231.7338344193.

The spelling of 12444239 in words is "twelve million, four hundred forty-four thousand, two hundred thirty-nine".