12915751 has 2 divisors, whose sum is σ = 12915752. Its totient is φ = 12915750.

The previous prime is 12915709. The next prime is 12915757. The reversal of 12915751 is 15751921.

It is a strong prime.

It is an emirp because it is prime and its reverse (15751921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12915751 - 2⁹ = 12915239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12915757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6457875 + 6457876.

It is an arithmetic number, because the mean of its divisors is an integer number (6457876).

Almost surely, 2^12915751 is an apocalyptic number.

12915751 is a deficient number, since it is larger than the sum of its proper divisors (1).

12915751 is an equidigital number, since it uses as much as digits as its factorization.

12915751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150, while the sum is 31.

The square root of 12915751 is about 3593.8490508089. The cubic root of 12915751 is about 234.6244249771.

The spelling of 12915751 in words is "twelve million, nine hundred fifteen thousand, seven hundred fifty-one".