180955 has 4 divisors (see below), whose sum is σ = 217152. Its totient is φ = 144760.

The previous prime is 180949. The next prime is 180959. The reversal of 180955 is 559081.

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

It is not a de Polignac number, because 180955 - 2¹¹ = 178907 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (180959) 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, 18091 + ... + 18100.

It is an arithmetic number, because the mean of its divisors is an integer number (54288).

2¹⁸⁰⁹⁵⁵ is an apocalyptic number.

180955 is a deficient number, since it is larger than the sum of its proper divisors (36197).

180955 is an equidigital number, since it uses as much as digits as its factorization.

180955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36196.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 180955 is about 425.3880581305. The cubic root of 180955 is about 56.5618400358.

The spelling of 180955 in words is "one hundred eighty thousand, nine hundred fifty-five".