126635317 has 4 divisors (see below), whose sum is σ = 126910476. Its totient is φ = 126360160.

The previous prime is 126635303. The next prime is 126635321. The reversal of 126635317 is 713536621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96943716 + 29691601 = 9846^2 + 5449^2 .

It is a cyclic number.

It is not a de Polignac number, because 126635317 - 2¹⁵ = 126602549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126635357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136888 + ... + 137809.

It is an arithmetic number, because the mean of its divisors is an integer number (31727619).

Almost surely, 2^126635317 is an apocalyptic number.

It is an amenable number.

126635317 is a deficient number, since it is larger than the sum of its proper divisors (275159).

126635317 is an equidigital number, since it uses as much as digits as its factorization.

126635317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275158.

The product of its digits is 22680, while the sum is 34.

The square root of 126635317 is about 11253.2358457468. The cubic root of 126635317 is about 502.1709826920.

The spelling of 126635317 in words is "one hundred twenty-six million, six hundred thirty-five thousand, three hundred seventeen".