12992761 has 2 divisors, whose sum is σ = 12992762. Its totient is φ = 12992760.

The previous prime is 12992753. The next prime is 12992797. The reversal of 12992761 is 16729921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12960000 + 32761 = 3600^2 + 181^2 .

It is a cyclic number.

It is not a de Polignac number, because 12992761 - 2³ = 12992753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12992761.

It is not a weakly prime, because it can be changed into another prime (12992461) 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, 6496380 + 6496381.

It is an arithmetic number, because the mean of its divisors is an integer number (6496381).

Almost surely, 2^12992761 is an apocalyptic number.

It is an amenable number.

12992761 is a deficient number, since it is larger than the sum of its proper divisors (1).

12992761 is an equidigital number, since it uses as much as digits as its factorization.

12992761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 37.

The square root of 12992761 is about 3604.5472669948. The cubic root of 12992761 is about 235.0898162793.

The spelling of 12992761 in words is "twelve million, nine hundred ninety-two thousand, seven hundred sixty-one".