163155 has 16 divisors (see below), whose sum is σ = 266400. Its totient is φ = 85248.

The previous prime is 163151. The next prime is 163169. The reversal of 163155 is 551361.

It is a happy number.

It is not a de Polignac number, because 163155 - 2² = 163151 is a prime.

163155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (163151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021 + ... + 1169.

It is an arithmetic number, because the mean of its divisors is an integer number (16650).

2¹⁶³¹⁵⁵ is an apocalyptic number.

163155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163155 is a deficient number, since it is larger than the sum of its proper divisors (103245).

163155 is a wasteful number, since it uses less digits than its factorization.

163155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230.

The product of its digits is 450, while the sum is 21.

The square root of 163155 is about 403.9244978953. The cubic root of 163155 is about 54.6428650763.

The spelling of 163155 in words is "one hundred sixty-three thousand, one hundred fifty-five".