201185 has 4 divisors (see below), whose sum is σ = 241428. Its totient is φ = 160944.

The previous prime is 201167. The next prime is 201193. The reversal of 201185 is 581102.

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 113569 + 87616 = 337^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 201185 - 2⁶ = 201121 is a prime.

It is a Duffinian number.

It is a Curzon 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, 20114 + ... + 20123.

It is an arithmetic number, because the mean of its divisors is an integer number (60357).

2²⁰¹¹⁸⁵ is an apocalyptic number.

It is an amenable number.

201185 is a deficient number, since it is larger than the sum of its proper divisors (40243).

201185 is an equidigital number, since it uses as much as digits as its factorization.

201185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40242.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 201185 is about 448.5365091049. The cubic root of 201185 is about 58.5956261029.

Adding to 201185 its reverse (581102), we get a palindrome (782287).

The spelling of 201185 in words is "two hundred one thousand, one hundred eighty-five".