120555998 has 8 divisors (see below), whose sum is σ = 183899160. Its totient is φ = 59256280.

The previous prime is 120555997. The next prime is 120556003. The reversal of 120555998 is 899555021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120555997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510713 + ... + 510948.

It is an arithmetic number, because the mean of its divisors is an integer number (22987395).

Almost surely, 2^120555998 is an apocalyptic number.

120555998 is a deficient number, since it is larger than the sum of its proper divisors (63343162).

120555998 is a wasteful number, since it uses less digits than its factorization.

120555998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021722.

The product of its (nonzero) digits is 162000, while the sum is 44.

The square root of 120555998 is about 10979.7995427968. The cubic root of 120555998 is about 494.0030241255.

The spelling of 120555998 in words is "one hundred twenty million, five hundred fifty-five thousand, nine hundred ninety-eight".