201885 has 16 divisors (see below), whose sum is σ = 331584. Its totient is φ = 104832.

The previous prime is 201881. The next prime is 201889. The reversal of 201885 is 588102.

201885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201881) and next prime (201889).

It is not a de Polignac number, because 201885 - 2² = 201881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489 + ... + 801.

It is an arithmetic number, because the mean of its divisors is an integer number (20724).

2²⁰¹⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

201885 is a deficient number, since it is larger than the sum of its proper divisors (129699).

201885 is a wasteful number, since it uses less digits than its factorization.

201885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 201885 is about 449.3161470502. The cubic root of 201885 is about 58.6635063438.

Adding to 201885 its reverse (588102), we get a palindrome (789987).

The spelling of 201885 in words is "two hundred one thousand, eight hundred eighty-five".