202985 has 4 divisors (see below), whose sum is σ = 243588. Its totient is φ = 162384.

The previous prime is 202981. The next prime is 202987. The reversal of 202985 is 589202.

202985 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 150544 + 52441 = 388^2 + 229^2 .

It is a cyclic number.

It is not a de Polignac number, because 202985 - 2² = 202981 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 202985.

It is not an unprimeable number, because it can be changed into a prime (202981) 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, 20294 + ... + 20303.

It is an arithmetic number, because the mean of its divisors is an integer number (60897).

2²⁰²⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

202985 is a deficient number, since it is larger than the sum of its proper divisors (40603).

202985 is an equidigital number, since it uses as much as digits as its factorization.

202985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40602.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 202985 is about 450.5385666067. The cubic root of 202985 is about 58.7698589873.

The spelling of 202985 in words is "two hundred two thousand, nine hundred eighty-five".