12768251 has 2 divisors, whose sum is σ = 12768252. Its totient is φ = 12768250.

The previous prime is 12768233. The next prime is 12768253. The reversal of 12768251 is 15286721.

It is a strong prime.

It is an emirp because it is prime and its reverse (15286721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12768251 is a prime.

Together with 12768253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12768253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6384125 + 6384126.

It is an arithmetic number, because the mean of its divisors is an integer number (6384126).

Almost surely, 2^12768251 is an apocalyptic number.

12768251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12768251 is an equidigital number, since it uses as much as digits as its factorization.

12768251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 12768251 is about 3573.2689515344. The cubic root of 12768251 is about 233.7278534310.

The spelling of 12768251 in words is "twelve million, seven hundred sixty-eight thousand, two hundred fifty-one".