120181055 has 4 divisors (see below), whose sum is σ = 144217272. Its totient is φ = 96144840.

The previous prime is 120181043. The next prime is 120181057. The reversal of 120181055 is 550181021.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-120181055 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120181055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120181057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12018101 + ... + 12018110.

It is an arithmetic number, because the mean of its divisors is an integer number (36054318).

Almost surely, 2^120181055 is an apocalyptic number.

120181055 is a deficient number, since it is larger than the sum of its proper divisors (24036217).

120181055 is an equidigital number, since it uses as much as digits as its factorization.

120181055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24036216.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 120181055 is about 10962.7120275961. The cubic root of 120181055 is about 493.4903568920.

The spelling of 120181055 in words is "one hundred twenty million, one hundred eighty-one thousand, fifty-five".