218283 has 16 divisors (see below), whose sum is σ = 325920. Its totient is φ = 129024.

The previous prime is 218279. The next prime is 218287. The reversal of 218283 is 382812.

218283 is nontrivially palindromic in base 2.

It is an interprime number because it is at equal distance from previous prime (218279) and next prime (218287).

It is not a de Polignac number, because 218283 - 2² = 218279 is a prime.

It is a plaindrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 218283.

It is not an unprimeable number, because it can be changed into a prime (218287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1035 + ... + 1227.

It is an arithmetic number, because the mean of its divisors is an integer number (20370).

2²¹⁸²⁸³ is an apocalyptic number.

218283 is a deficient number, since it is larger than the sum of its proper divisors (107637).

218283 is a wasteful number, since it uses less digits than its factorization.

218283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238.

The product of its digits is 768, while the sum is 24.

The square root of 218283 is about 467.2076626084. The cubic root of 218283 is about 60.2106484771.

The spelling of 218283 in words is "two hundred eighteen thousand, two hundred eighty-three".