200285 has 8 divisors (see below), whose sum is σ = 246456. Its totient is φ = 156160.

The previous prime is 200273. The next prime is 200293. The reversal of 200285 is 582002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17956 + 182329 = 134^2 + 427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 200285 - 2⁸ = 200029 is a prime.

It is a super-2 number, since 2×200285² = 80228162450, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284 + ... + 693.

It is an arithmetic number, because the mean of its divisors is an integer number (30807).

2²⁰⁰²⁸⁵ is an apocalyptic number.

It is an amenable number.

200285 is a deficient number, since it is larger than the sum of its proper divisors (46171).

200285 is an equidigital number, since it uses as much as digits as its factorization.

200285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 200285 is about 447.5321217522. The cubic root of 200285 is about 58.5081197486.

Adding to 200285 its reverse (582002), we get a palindrome (782287).

The spelling of 200285 in words is "two hundred thousand, two hundred eighty-five".