285112 has 16 divisors (see below), whose sum is σ = 540360. Its totient is φ = 141024.

The previous prime is 285101. The next prime is 285113. The reversal of 285112 is 211582.

It is a self number, because there is not a number n which added to its sum of digits gives 285112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285113) by changing a digit.

285112 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 in 3 ways as a sum of consecutive naturals, for example, 1143 + ... + 1369.

2²⁸⁵¹¹² is an apocalyptic number.

It is an amenable number.

285112 is a deficient number, since it is larger than the sum of its proper divisors (255248).

285112 is a wasteful number, since it uses less digits than its factorization.

285112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 386 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 285112 is about 533.9587999088. The cubic root of 285112 is about 65.8170630447.

Adding to 285112 its reverse (211582), we get a palindrome (496694).

The spelling of 285112 in words is "two hundred eighty-five thousand, one hundred twelve".