285002 has 4 divisors (see below), whose sum is σ = 427506. Its totient is φ = 142500.

The previous prime is 284989. The next prime is 285007. The reversal of 285002 is 200582.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200582 = 2 ⋅100291.

It can be written as a sum of positive squares in only one way, i.e., 259081 + 25921 = 509^2 + 161^2 .

It is a super-2 number, since 2×285002² = 162452280008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (285007) by changing a digit.

285002 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71249 + ... + 71252.

2²⁸⁵⁰⁰² is an apocalyptic number.

285002 is a deficient number, since it is larger than the sum of its proper divisors (142504).

285002 is a wasteful number, since it uses less digits than its factorization.

285002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142503.

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

The square root of 285002 is about 533.8557857699. The cubic root of 285002 is about 65.8085975899.

Adding to 285002 its reverse (200582), we get a palindrome (485584).

The spelling of 285002 in words is "two hundred eighty-five thousand, two".