120105155 has 8 divisors (see below), whose sum is σ = 146845872. Its totient is φ = 94271008.

The previous prime is 120105143. The next prime is 120105197. The reversal of 120105155 is 551501021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 120105155 - 2⁸ = 120104899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226349 + ... + 226878.

It is an arithmetic number, because the mean of its divisors is an integer number (18355734).

Almost surely, 2^120105155 is an apocalyptic number.

120105155 is a deficient number, since it is larger than the sum of its proper divisors (26740717).

120105155 is an equidigital number, since it uses as much as digits as its factorization.

120105155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453285.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 120105155 is about 10959.2497462189. The cubic root of 120105155 is about 493.3864475420.

Adding to 120105155 its reverse (551501021), we get a palindrome (671606176).

The spelling of 120105155 in words is "one hundred twenty million, one hundred five thousand, one hundred fifty-five".