12968651 has 2 divisors, whose sum is σ = 12968652. Its totient is φ = 12968650.

The previous prime is 12968639. The next prime is 12968653. The reversal of 12968651 is 15686921.

It is a strong prime.

It is an emirp because it is prime and its reverse (15686921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12968651 - 2¹⁰ = 12967627 is a prime.

Together with 12968653, 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 (12968653) 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, 6484325 + 6484326.

It is an arithmetic number, because the mean of its divisors is an integer number (6484326).

Almost surely, 2^12968651 is an apocalyptic number.

12968651 is a deficient number, since it is larger than the sum of its proper divisors (1).

12968651 is an equidigital number, since it uses as much as digits as its factorization.

12968651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 38.

The square root of 12968651 is about 3601.2013273351. The cubic root of 12968651 is about 234.9443115366.

The spelling of 12968651 in words is "twelve million, nine hundred sixty-eight thousand, six hundred fifty-one".