285116 has 12 divisors (see below), whose sum is σ = 537432. Its totient is φ = 131568.

The previous prime is 285113. The next prime is 285119. The reversal of 285116 is 611582.

It is an interprime number because it is at equal distance from previous prime (285113) and next prime (285119).

It is a super-2 number, since 2×285116² = 162582266912, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 285091 and 285100.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 285116.

It is not an unprimeable number, because it can be changed into a prime (285113) 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, 2690 + ... + 2793.

It is an arithmetic number, because the mean of its divisors is an integer number (44786).

2²⁸⁵¹¹⁶ is an apocalyptic number.

285116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

285116 is a deficient number, since it is larger than the sum of its proper divisors (252316).

285116 is a wasteful number, since it uses less digits than its factorization.

285116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500 (or 5498 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 285116 is about 533.9625455030. The cubic root of 285116 is about 65.8173708384.

Adding to 285116 its reverse (611582), we get a palindrome (896698).

The spelling of 285116 in words is "two hundred eighty-five thousand, one hundred sixteen".