126965777 has 2 divisors, whose sum is σ = 126965778. Its totient is φ = 126965776.

The previous prime is 126965749. The next prime is 126965803. The reversal of 126965777 is 777569621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81793936 + 45171841 = 9044^2 + 6721^2 .

It is a cyclic number.

It is not a de Polignac number, because 126965777 - 2⁸ = 126965521 is a prime.

It is a super-2 number, since 2×126965777² = 32240617058427458, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126965717) 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, 63482888 + 63482889.

It is an arithmetic number, because the mean of its divisors is an integer number (63482889).

Almost surely, 2^126965777 is an apocalyptic number.

It is an amenable number.

126965777 is a deficient number, since it is larger than the sum of its proper divisors (1).

126965777 is an equidigital number, since it uses as much as digits as its factorization.

126965777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1111320, while the sum is 50.

The square root of 126965777 is about 11267.9091671880. The cubic root of 126965777 is about 502.6074151369.

The spelling of 126965777 in words is "one hundred twenty-six million, nine hundred sixty-five thousand, seven hundred seventy-seven".