12443251 has 2 divisors, whose sum is σ = 12443252. Its totient is φ = 12443250.

The previous prime is 12443243. The next prime is 12443261. The reversal of 12443251 is 15234421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12443251 - 2³ = 12443243 is a prime.

It is not a weakly prime, because it can be changed into another prime (12443231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221625 + 6221626.

It is an arithmetic number, because the mean of its divisors is an integer number (6221626).

Almost surely, 2^12443251 is an apocalyptic number.

12443251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12443251 is an equidigital number, since it uses as much as digits as its factorization.

12443251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 12443251 is about 3527.4992558468. The cubic root of 12443251 is about 231.7277014853.

Adding to 12443251 its reverse (15234421), we get a palindrome (27677672).

The spelling of 12443251 in words is "twelve million, four hundred forty-three thousand, two hundred fifty-one".