126556122 has 48 divisors (see below), whose sum is σ = 321211872. Its totient is φ = 32870880.

The previous prime is 126556117. The next prime is 126556123. The reversal of 126556122 is 221655621.

It is a self number, because there is not a number n which added to its sum of digits gives 126556122.

It is not an unprimeable number, because it can be changed into a prime (126556123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16333 + ... + 22800.

It is an arithmetic number, because the mean of its divisors is an integer number (6691914).

Almost surely, 2^126556122 is an apocalyptic number.

126556122 is an abundant number, since it is smaller than the sum of its proper divisors (194655750).

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

126556122 is a wasteful number, since it uses less digits than its factorization.

126556122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39163 (or 39156 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 126556122 is about 11249.7165297620. The cubic root of 126556122 is about 502.0662785565.

The spelling of 126556122 in words is "one hundred twenty-six million, five hundred fifty-six thousand, one hundred twenty-two".