218282 has 4 divisors (see below), whose sum is σ = 327426. Its totient is φ = 109140.

The previous prime is 218279. The next prime is 218287. The reversal of 218282 is 282812.

218282 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 128881 + 89401 = 359^2 + 299^2 .

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 as a sum of consecutive naturals, namely, 54569 + ... + 54572.

2²¹⁸²⁸² is an apocalyptic number.

218282 is a deficient number, since it is larger than the sum of its proper divisors (109144).

218282 is a wasteful number, since it uses less digits than its factorization.

218282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109143.

The product of its digits is 512, while the sum is 23.

The square root of 218282 is about 467.2065924192. The cubic root of 218282 is about 60.2105565311.

The spelling of 218282 in words is "two hundred eighteen thousand, two hundred eighty-two".