12918757 has 2 divisors, whose sum is σ = 12918758. Its totient is φ = 12918756.

The previous prime is 12918743. The next prime is 12918761. The reversal of 12918757 is 75781921.

12918757 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6522916 + 6395841 = 2554^2 + 2529^2 .

It is a cyclic number.

It is not a de Polignac number, because 12918757 - 2¹⁵ = 12885989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12918707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6459378 + 6459379.

It is an arithmetic number, because the mean of its divisors is an integer number (6459379).

Almost surely, 2^12918757 is an apocalyptic number.

It is an amenable number.

12918757 is a deficient number, since it is larger than the sum of its proper divisors (1).

12918757 is an equidigital number, since it uses as much as digits as its factorization.

12918757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 40.

The square root of 12918757 is about 3594.2672410382. The cubic root of 12918757 is about 234.6426256560.

The spelling of 12918757 in words is "twelve million, nine hundred eighteen thousand, seven hundred fifty-seven".