12909751 has 2 divisors, whose sum is σ = 12909752. Its totient is φ = 12909750.

The previous prime is 12909709. The next prime is 12909769. The reversal of 12909751 is 15790921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12909751 - 2⁷ = 12909623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12909251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6454875 + 6454876.

It is an arithmetic number, because the mean of its divisors is an integer number (6454876).

Almost surely, 2^12909751 is an apocalyptic number.

12909751 is a deficient number, since it is larger than the sum of its proper divisors (1).

12909751 is an equidigital number, since it uses as much as digits as its factorization.

12909751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 12909751 is about 3593.0141942386. The cubic root of 12909751 is about 234.5880878309.

The spelling of 12909751 in words is "twelve million, nine hundred nine thousand, seven hundred fifty-one".