12444251 has 2 divisors, whose sum is σ = 12444252. Its totient is φ = 12444250.

The previous prime is 12444239. The next prime is 12444281. The reversal of 12444251 is 15244421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12444251 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p₈₁₅₃₂₄ and since 12444251 and 815324 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12444281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222125 + 6222126.

It is an arithmetic number, because the mean of its divisors is an integer number (6222126).

Almost surely, 2^12444251 is an apocalyptic number.

12444251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444251 is an equidigital number, since it uses as much as digits as its factorization.

12444251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 23.

The square root of 12444251 is about 3527.6409964734. The cubic root of 12444251 is about 231.7339089064.

Adding to 12444251 its reverse (15244421), we get a palindrome (27688672).

The spelling of 12444251 in words is "twelve million, four hundred forty-four thousand, two hundred fifty-one".