156285 has 24 divisors (see below), whose sum is σ = 284544. Its totient is φ = 79200.

The previous prime is 156269. The next prime is 156307. The reversal of 156285 is 582651.

It is not a de Polignac number, because 156285 - 2⁴ = 156269 is a prime.

156285 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 960 + ... + 1110.

It is an arithmetic number, because the mean of its divisors is an integer number (11856).

156285 is a Friedman number, since it can be written as 5*(8+5^6*2-1), using all its digits and the basic arithmetic operations.

2¹⁵⁶²⁸⁵ is an apocalyptic number.

156285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

156285 is a deficient number, since it is larger than the sum of its proper divisors (128259).

156285 is a wasteful number, since it uses less digits than its factorization.

156285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 182 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 156285 is about 395.3289769293. The cubic root of 156285 is about 53.8648885620.

It can be divided in two parts, 156 and 285, that added together give a square (441 = 21²).

The spelling of 156285 in words is "one hundred fifty-six thousand, two hundred eighty-five".