126265717 has 2 divisors, whose sum is σ = 126265718. Its totient is φ = 126265716.

The previous prime is 126265703. The next prime is 126265751. The reversal of 126265717 is 717562621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112656996 + 13608721 = 10614^2 + 3689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126265717 is a prime.

It is equal to p_7178068 and since 126265717 and 7178068 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126265787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63132858 + 63132859.

It is an arithmetic number, because the mean of its divisors is an integer number (63132859).

Almost surely, 2^126265717 is an apocalyptic number.

It is an amenable number.

126265717 is a deficient number, since it is larger than the sum of its proper divisors (1).

126265717 is an equidigital number, since it uses as much as digits as its factorization.

126265717 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 126265717 is about 11236.8019026768. The cubic root of 126265717 is about 501.6819583545.

The spelling of 126265717 in words is "one hundred twenty-six million, two hundred sixty-five thousand, seven hundred seventeen".