155875161 has 24 divisors (see below), whose sum is σ = 231329280. Its totient is φ = 92806560.

The previous prime is 155875157. The next prime is 155875177. The reversal of 155875161 is 161578551.

It is not a de Polignac number, because 155875161 - 2² = 155875157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (155875151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35400 + ... + 39558.

It is an arithmetic number, because the mean of its divisors is an integer number (9638720).

Almost surely, 2^155875161 is an apocalyptic number.

It is an amenable number.

155875161 is a deficient number, since it is larger than the sum of its proper divisors (75454119).

155875161 is a wasteful number, since it uses less digits than its factorization.

155875161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237 (or 4206 counting only the distinct ones).

The product of its digits is 42000, while the sum is 39.

The square root of 155875161 is about 12484.9974369240. The cubic root of 155875161 is about 538.1776256907.

The spelling of 155875161 in words is "one hundred fifty-five million, eight hundred seventy-five thousand, one hundred sixty-one".