120555128 has 16 divisors (see below), whose sum is σ = 228582000. Its totient is φ = 59599936.

The previous prime is 120555091. The next prime is 120555151. The reversal of 120555128 is 821555021.

It is a self number, because there is not a number n which added to its sum of digits gives 120555128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83948 + ... + 85371.

It is an arithmetic number, because the mean of its divisors is an integer number (14286375).

Almost surely, 2^120555128 is an apocalyptic number.

It is an amenable number.

120555128 is a deficient number, since it is larger than the sum of its proper divisors (108026872).

120555128 is a wasteful number, since it uses less digits than its factorization.

120555128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169414 (or 169410 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 120555128 is about 10979.7599245157. The cubic root of 120555128 is about 494.0018357879.

The spelling of 120555128 in words is "one hundred twenty million, five hundred fifty-five thousand, one hundred twenty-eight".