285202 has 4 divisors (see below), whose sum is σ = 427806. Its totient is φ = 142600.

The previous prime is 285199. The next prime is 285221. The reversal of 285202 is 202582.

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

It can be written as a sum of positive squares in only one way, i.e., 168921 + 116281 = 411^2 + 341^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 285202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71299 + ... + 71302.

2²⁸⁵²⁰² is an apocalyptic number.

285202 is a deficient number, since it is larger than the sum of its proper divisors (142604).

285202 is a wasteful number, since it uses less digits than its factorization.

285202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142603.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 285202 is about 534.0430694242. The cubic root of 285202 is about 65.8239877065.

Adding to 285202 its reverse (202582), we get a palindrome (487784).

The spelling of 285202 in words is "two hundred eighty-five thousand, two hundred two".