126556722 has 16 divisors (see below), whose sum is σ = 281237280. Its totient is φ = 42185556.

The previous prime is 126556693. The next prime is 126556733. The reversal of 126556722 is 227655621.

126556722 is a `hidden beast` number, since 12 + 65 + 567 + 22 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1171768 + ... + 1171875.

It is an arithmetic number, because the mean of its divisors is an integer number (17577330).

Almost surely, 2^126556722 is an apocalyptic number.

126556722 is an abundant number, since it is smaller than the sum of its proper divisors (154680558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126556722 is a wasteful number, since it uses less digits than its factorization.

126556722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343654 (or 2343648 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 126556722 is about 11249.7431970690. The cubic root of 126556722 is about 502.0670719839.

The spelling of 126556722 in words is "one hundred twenty-six million, five hundred fifty-six thousand, seven hundred twenty-two".