126258317 has 2 divisors, whose sum is σ = 126258318. Its totient is φ = 126258316.

The previous prime is 126258299. The next prime is 126258323. The reversal of 126258317 is 713852621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71808676 + 54449641 = 8474^2 + 7379^2 .

It is an emirp because it is prime and its reverse (713852621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126258317 - 2¹⁰ = 126257293 is a prime.

It is a super-2 number, since 2×126258317² = 31882325223344978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126258347) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63129158 + 63129159.

It is an arithmetic number, because the mean of its divisors is an integer number (63129159).

Almost surely, 2^126258317 is an apocalyptic number.

It is an amenable number.

126258317 is a deficient number, since it is larger than the sum of its proper divisors (1).

126258317 is an equidigital number, since it uses as much as digits as its factorization.

126258317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 126258317 is about 11236.4726226694. The cubic root of 126258317 is about 501.6721575442.

The spelling of 126258317 in words is "one hundred twenty-six million, two hundred fifty-eight thousand, three hundred seventeen".