126666226 has 16 divisors (see below), whose sum is σ = 191620440. Its totient is φ = 62795520.

The previous prime is 126666223. The next prime is 126666251. The reversal of 126666226 is 622666621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 97990201 + 28676025 = 9899^2 + 5355^2 .

It is not an unprimeable number, because it can be changed into a prime (126666223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152380 + ... + 153208.

Almost surely, 2^126666226 is an apocalyptic number.

126666226 is a deficient number, since it is larger than the sum of its proper divisors (64954214).

126666226 is a wasteful number, since it uses less digits than its factorization.

126666226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389.

The product of its digits is 62208, while the sum is 37.

The square root of 126666226 is about 11254.6091002753. The cubic root of 126666226 is about 502.2118358037.

The spelling of 126666226 in words is "one hundred twenty-six million, six hundred sixty-six thousand, two hundred twenty-six".