18275 has 12 divisors (see below), whose sum is σ = 24552. Its totient is φ = 13440.

The previous prime is 18269. The next prime is 18287. The reversal of 18275 is 57281.

It is not a de Polignac number, because 18275 - 2⁶ = 18211 is a prime.

It is a Duffinian number.

Its product of digits (560) is a multiple of the sum of its prime factors (70).

It is a self number, because there is not a number n which added to its sum of digits gives 18275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404 + ... + 446.

It is an arithmetic number, because the mean of its divisors is an integer number (2046).

2¹⁸²⁷⁵ is an apocalyptic number.

18275 is a deficient number, since it is larger than the sum of its proper divisors (6277).

18275 is a wasteful number, since it uses less digits than its factorization.

18275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 65 counting only the distinct ones).

The product of its digits is 560, while the sum is 23.

The square root of 18275 is about 135.1850583460. The cubic root of 18275 is about 26.3402036588.

It can be divided in two parts, 18 and 275, that multiplied together give a triangular number (4950 = T₉₉).

The spelling of 18275 in words is "eighteen thousand, two hundred seventy-five".