12968551 has 2 divisors, whose sum is σ = 12968552. Its totient is φ = 12968550.

The previous prime is 12968533. The next prime is 12968563. The reversal of 12968551 is 15586921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12968551 - 2⁵ = 12968519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12968551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12968521) 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, 6484275 + 6484276.

It is an arithmetic number, because the mean of its divisors is an integer number (6484276).

Almost surely, 2^12968551 is an apocalyptic number.

12968551 is the 1611-st centered decagonal number.

12968551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12968551 is an equidigital number, since it uses as much as digits as its factorization.

12968551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 37.

The square root of 12968551 is about 3601.1874430526. The cubic root of 12968551 is about 234.9437076575.

The spelling of 12968551 in words is "twelve million, nine hundred sixty-eight thousand, five hundred fifty-one".