12791951 has 2 divisors, whose sum is σ = 12791952. Its totient is φ = 12791950.

The previous prime is 12791893. The next prime is 12791969. The reversal of 12791951 is 15919721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12791951 - 2¹⁰ = 12790927 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12791981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6395975 + 6395976.

It is an arithmetic number, because the mean of its divisors is an integer number (6395976).

Almost surely, 2^12791951 is an apocalyptic number.

12791951 is a deficient number, since it is larger than the sum of its proper divisors (1).

12791951 is an equidigital number, since it uses as much as digits as its factorization.

12791951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 35.

The square root of 12791951 is about 3576.5837051578. The cubic root of 12791951 is about 233.8723766534.

The spelling of 12791951 in words is "twelve million, seven hundred ninety-one thousand, nine hundred fifty-one".