285160 has 16 divisors (see below), whose sum is σ = 641700. Its totient is φ = 114048.

The previous prime is 285151. The next prime is 285161. The reversal of 285160 is 61582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 285156 + 4 = 534^2 + 2^2 .

It is not an unprimeable number, because it can be changed into a prime (285161) 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, 3525 + ... + 3604.

2²⁸⁵¹⁶⁰ is an apocalyptic number.

285160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285160 is an abundant number, since it is smaller than the sum of its proper divisors (356540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285160 is a wasteful number, since it uses less digits than its factorization.

285160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7140 (or 7136 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 285160 is about 534.0037453052. The cubic root of 285160 is about 65.8207563790.

The spelling of 285160 in words is "two hundred eighty-five thousand, one hundred sixty".