126663413 has 4 divisors (see below), whose sum is σ = 134114220. Its totient is φ = 119212608.

The previous prime is 126663409. The next prime is 126663419. The reversal of 126663413 is 314366621.

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 64915249 + 61748164 = 8057^2 + 7858^2 .

It is a cyclic number.

It is not a de Polignac number, because 126663413 - 2² = 126663409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126663413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126663419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3725378 + ... + 3725411.

It is an arithmetic number, because the mean of its divisors is an integer number (33528555).

Almost surely, 2^126663413 is an apocalyptic number.

It is an amenable number.

126663413 is a deficient number, since it is larger than the sum of its proper divisors (7450807).

126663413 is an equidigital number, since it uses as much as digits as its factorization.

126663413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7450806.

The product of its digits is 15552, while the sum is 32.

The square root of 126663413 is about 11254.4841285596. The cubic root of 126663413 is about 502.2081180741.

The spelling of 126663413 in words is "one hundred twenty-six million, six hundred sixty-three thousand, four hundred thirteen".