282155 has 4 divisors (see below), whose sum is σ = 338592. Its totient is φ = 225720.

The previous prime is 282143. The next prime is 282157. The reversal of 282155 is 551282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551282 = 2 ⋅275641.

It is not a de Polignac number, because 282155 - 2⁶ = 282091 is a prime.

It is a super-2 number, since 2×282155² = 159222888050, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 282155.

It is not an unprimeable number, because it can be changed into a prime (282157) 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, 28211 + ... + 28220.

It is an arithmetic number, because the mean of its divisors is an integer number (84648).

2²⁸²¹⁵⁵ is an apocalyptic number.

282155 is a deficient number, since it is larger than the sum of its proper divisors (56437).

282155 is an equidigital number, since it uses as much as digits as its factorization.

282155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56436.

The product of its digits is 800, while the sum is 23.

The square root of 282155 is about 531.1826427887. The cubic root of 282155 is about 65.5887343087.

The spelling of 282155 in words is "two hundred eighty-two thousand, one hundred fifty-five".