9120155 has 16 divisors (see below), whose sum is σ = 12096000. Its totient is φ = 6545760.

The previous prime is 9120151. The next prime is 9120193. The reversal of 9120155 is 5510219.

9120155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9120155 - 2² = 9120151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9120155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9120151) 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, 3296 + ... + 5394.

It is an arithmetic number, because the mean of its divisors is an integer number (756000).

Almost surely, 2^9120155 is an apocalyptic number.

9120155 is a deficient number, since it is larger than the sum of its proper divisors (2975845).

9120155 is a wasteful number, since it uses less digits than its factorization.

9120155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 9120155 is about 3019.9594368137. The cubic root of 9120155 is about 208.9299689821.

The spelling of 9120155 in words is "nine million, one hundred twenty thousand, one hundred fifty-five".