184985 has 4 divisors (see below), whose sum is σ = 221988. Its totient is φ = 147984.

The previous prime is 184969. The next prime is 184993. The reversal of 184985 is 589481.

184985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 104329 + 80656 = 323^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 184985 - 2⁴ = 184969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18494 + ... + 18503.

It is an arithmetic number, because the mean of its divisors is an integer number (55497).

2¹⁸⁴⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

184985 is a deficient number, since it is larger than the sum of its proper divisors (37003).

184985 is an equidigital number, since it uses as much as digits as its factorization.

184985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37002.

The product of its digits is 11520, while the sum is 35.

The square root of 184985 is about 430.0988258528. The cubic root of 184985 is about 56.9786521062.

Subtracting 184985 from its reverse (589481), we obtain a square (404496 = 636²).

The spelling of 184985 in words is "one hundred eighty-four thousand, nine hundred eighty-five".