120252155 has 4 divisors (see below), whose sum is σ = 144302592. Its totient is φ = 96201720.

The previous prime is 120252151. The next prime is 120252173. The reversal of 120252155 is 551252021.

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

It is not a de Polignac number, because 120252155 - 2² = 120252151 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 120252155.

It is not an unprimeable number, because it can be changed into a prime (120252151) 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, 12025211 + ... + 12025220.

It is an arithmetic number, because the mean of its divisors is an integer number (36075648).

Almost surely, 2^120252155 is an apocalyptic number.

120252155 is a deficient number, since it is larger than the sum of its proper divisors (24050437).

120252155 is an equidigital number, since it uses as much as digits as its factorization.

120252155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24050436.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 120252155 is about 10965.9543588326. The cubic root of 120252155 is about 493.5876552207.

The spelling of 120252155 in words is "one hundred twenty million, two hundred fifty-two thousand, one hundred fifty-five".