126303866 has 16 divisors (see below), whose sum is σ = 209545224. Its totient is φ = 56718144.

The previous prime is 126303851. The next prime is 126303869. The reversal of 126303866 is 668303621.

It can be written as a sum of positive squares in 4 ways, for example, as 123854641 + 2449225 = 11129^2 + 1565^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (126303869) 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 7 ways as a sum of consecutive naturals, for example, 64685 + ... + 66608.

Almost surely, 2^126303866 is an apocalyptic number.

126303866 is a deficient number, since it is larger than the sum of its proper divisors (83241358).

126303866 is a wasteful number, since it uses less digits than its factorization.

126303866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131345.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 126303866 is about 11238.4992770387. The cubic root of 126303866 is about 501.7324781059.

The spelling of 126303866 in words is "one hundred twenty-six million, three hundred three thousand, eight hundred sixty-six".