126251626 has 4 divisors (see below), whose sum is σ = 189377442. Its totient is φ = 63125812.

The previous prime is 126251621. The next prime is 126251627. The reversal of 126251626 is 626152621.

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

It can be written as a sum of positive squares in only one way, i.e., 126000625 + 251001 = 11225^2 + 501^2 .

It is a Smith number, since the sum of its digits (31) 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 (126251621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31562905 + ... + 31562908.

Almost surely, 2^126251626 is an apocalyptic number.

126251626 is a deficient number, since it is larger than the sum of its proper divisors (63125816).

126251626 is an equidigital number, since it uses as much as digits as its factorization.

126251626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63125815.

The product of its digits is 8640, while the sum is 31.

The square root of 126251626 is about 11236.1748829395. The cubic root of 126251626 is about 501.6632954278.

The spelling of 126251626 in words is "one hundred twenty-six million, two hundred fifty-one thousand, six hundred twenty-six".