12864251 has 2 divisors, whose sum is σ = 12864252. Its totient is φ = 12864250.

The previous prime is 12864233. The next prime is 12864263. The reversal of 12864251 is 15246821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12864251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12864851) 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, 6432125 + 6432126.

It is an arithmetic number, because the mean of its divisors is an integer number (6432126).

Almost surely, 2^12864251 is an apocalyptic number.

12864251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12864251 is an equidigital number, since it uses as much as digits as its factorization.

12864251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 12864251 is about 3586.6768742110. The cubic root of 12864251 is about 234.3121640381.

The spelling of 12864251 in words is "twelve million, eight hundred sixty-four thousand, two hundred fifty-one".