120118155 has 16 divisors (see below), whose sum is σ = 194897664. Its totient is φ = 63160160.

The previous prime is 120118153. The next prime is 120118199. The reversal of 120118155 is 551811021.

It is not a de Polignac number, because 120118155 - 2¹ = 120118153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120118153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55329 + ... + 57458.

It is an arithmetic number, because the mean of its divisors is an integer number (12181104).

Almost surely, 2^120118155 is an apocalyptic number.

120118155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120118155 is a deficient number, since it is larger than the sum of its proper divisors (74779509).

120118155 is a wasteful number, since it uses less digits than its factorization.

120118155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112866.

The product of its (nonzero) digits is 400, while the sum is 24.

The square root of 120118155 is about 10959.8428364644. The cubic root of 120118155 is about 493.4042480336.

Adding to 120118155 its reverse (551811021), we get a palindrome (671929176).

The spelling of 120118155 in words is "one hundred twenty million, one hundred eighteen thousand, one hundred fifty-five".