126977713 has 2 divisors, whose sum is σ = 126977714. Its totient is φ = 126977712.

The previous prime is 126977707. The next prime is 126977801. The reversal of 126977713 is 317779621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72114064 + 54863649 = 8492^2 + 7407^2 .

It is a cyclic number.

It is not a de Polignac number, because 126977713 - 2⁵ = 126977681 is a prime.

It is a super-2 number, since 2×126977713² = 32246679197420738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126977713.

It is not a weakly prime, because it can be changed into another prime (126977113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63488856 + 63488857.

It is an arithmetic number, because the mean of its divisors is an integer number (63488857).

Almost surely, 2^126977713 is an apocalyptic number.

It is an amenable number.

126977713 is a deficient number, since it is larger than the sum of its proper divisors (1).

126977713 is an equidigital number, since it uses as much as digits as its factorization.

126977713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111132, while the sum is 43.

The square root of 126977713 is about 11268.4388004728. The cubic root of 126977713 is about 502.6231646148.

The spelling of 126977713 in words is "one hundred twenty-six million, nine hundred seventy-seven thousand, seven hundred thirteen".