285495 has 16 divisors (see below), whose sum is σ = 522240. Its totient is φ = 130464.

The previous prime is 285473. The next prime is 285497. The reversal of 285495 is 594582.

It is not a de Polignac number, because 285495 - 2⁵ = 285463 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 8⁶ + 4⁴ + 5² + 9⁴ + 5³ .

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 285495.

It is not an unprimeable number, because it can be changed into a prime (285497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255 + ... + 1464.

It is an arithmetic number, because the mean of its divisors is an integer number (32640).

2²⁸⁵⁴⁹⁵ is an apocalyptic number.

285495 is a deficient number, since it is larger than the sum of its proper divisors (236745).

285495 is a wasteful number, since it uses less digits than its factorization.

285495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734.

The product of its digits is 14400, while the sum is 33.

The square root of 285495 is about 534.3173214486. The cubic root of 285495 is about 65.8465212413.

It can be divided in two parts, 285 and 495, that added together give a triangular number (780 = T₃₉).

The spelling of 285495 in words is "two hundred eighty-five thousand, four hundred ninety-five".