12742957 has 2 divisors, whose sum is σ = 12742958. Its totient is φ = 12742956.

The previous prime is 12742913. The next prime is 12742993. The reversal of 12742957 is 75924721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7295401 + 5447556 = 2701^2 + 2334^2 .

It is a cyclic number.

It is not a de Polignac number, because 12742957 - 2¹⁵ = 12710189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12742057) 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, 6371478 + 6371479.

It is an arithmetic number, because the mean of its divisors is an integer number (6371479).

Almost surely, 2^12742957 is an apocalyptic number.

It is an amenable number.

12742957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12742957 is an equidigital number, since it uses as much as digits as its factorization.

12742957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 37.

The square root of 12742957 is about 3569.7278607759. The cubic root of 12742957 is about 233.5734125324.

The spelling of 12742957 in words is "twelve million, seven hundred forty-two thousand, nine hundred fifty-seven".