120268155 has 16 divisors (see below), whose sum is σ = 219919104. Its totient is φ = 54979680.

The previous prime is 120268151. The next prime is 120268163. The reversal of 120268155 is 551862021.

It is not a de Polignac number, because 120268155 - 2² = 120268151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120268151) 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, 572601 + ... + 572810.

It is an arithmetic number, because the mean of its divisors is an integer number (13744944).

Almost surely, 2^120268155 is an apocalyptic number.

120268155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120268155 is a deficient number, since it is larger than the sum of its proper divisors (99650949).

120268155 is a wasteful number, since it uses less digits than its factorization.

120268155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145426.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 120268155 is about 10966.6838652347. The cubic root of 120268155 is about 493.6095454791.

The spelling of 120268155 in words is "one hundred twenty million, two hundred sixty-eight thousand, one hundred fifty-five".