126635393 has 2 divisors, whose sum is σ = 126635394. Its totient is φ = 126635392.

The previous prime is 126635381. The next prime is 126635459. The reversal of 126635393 is 393536621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126607504 + 27889 = 11252^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 126635393 - 2¹⁰ = 126634369 is a prime.

It is not a weakly prime, because it can be changed into another prime (126635303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63317696 + 63317697.

It is an arithmetic number, because the mean of its divisors is an integer number (63317697).

Almost surely, 2^126635393 is an apocalyptic number.

It is an amenable number.

126635393 is a deficient number, since it is larger than the sum of its proper divisors (1).

126635393 is an equidigital number, since it uses as much as digits as its factorization.

126635393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 38.

The square root of 126635393 is about 11253.2392225528. The cubic root of 126635393 is about 502.1710831511.

The spelling of 126635393 in words is "one hundred twenty-six million, six hundred thirty-five thousand, three hundred ninety-three".