218116 has 12 divisors (see below), whose sum is σ = 394240. Its totient is φ = 105480.

The previous prime is 218111. The next prime is 218117. The reversal of 218116 is 611812.

It is a junction number, because it is equal to n+sod(n) for n = 218093 and 218102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218111) by changing a digit.

218116 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756 + ... + 1003.

2²¹⁸¹¹⁶ is an apocalyptic number.

It is an amenable number.

218116 is a deficient number, since it is larger than the sum of its proper divisors (176124).

218116 is a wasteful number, since it uses less digits than its factorization.

218116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794 (or 1792 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

The square root of 218116 is about 467.0289070282. The cubic root of 218116 is about 60.1952896025.

Adding to 218116 its reverse (611812), we get a palindrome (829928).

It can be divided in two parts, 2181 and 16, that added together give a cube (2197 = 13³).

The spelling of 218116 in words is "two hundred eighteen thousand, one hundred sixteen".