126575717 has 2 divisors, whose sum is σ = 126575718. Its totient is φ = 126575716.

The previous prime is 126575689. The next prime is 126575753. The reversal of 126575717 is 717575621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88247236 + 38328481 = 9394^2 + 6191^2 .

It is a cyclic number.

It is not a de Polignac number, because 126575717 - 2⁸ = 126575461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126571717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63287858 + 63287859.

It is an arithmetic number, because the mean of its divisors is an integer number (63287859).

Almost surely, 2^126575717 is an apocalyptic number.

It is an amenable number.

126575717 is a deficient number, since it is larger than the sum of its proper divisors (1).

126575717 is an equidigital number, since it uses as much as digits as its factorization.

126575717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102900, while the sum is 41.

The square root of 126575717 is about 11250.5874068868. The cubic root of 126575717 is about 502.0921892773.

The spelling of 126575717 in words is "one hundred twenty-six million, five hundred seventy-five thousand, seven hundred seventeen".