218500106 has 24 divisors (see below), whose sum is σ = 361154052. Its totient is φ = 99070400.

The previous prime is 218500081. The next prime is 218500127. The reversal of 218500106 is 601005812.

218500106 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 214358881 + 4141225 = 14641^2 + 2035^2 .

It is a super-2 number, since 2×218500106² = 95484592644022472, which contains 22 as substring.

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, 125216 + ... + 126948.

Almost surely, 2^218500106 is an apocalyptic number.

218500106 is a deficient number, since it is larger than the sum of its proper divisors (142653946).

218500106 is a wasteful number, since it uses less digits than its factorization.

218500106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 218500106 is about 14781.7490845975. The cubic root of 218500106 is about 602.3060385850.

Adding to 218500106 its reverse (601005812), we get a palindrome (819505918).

The spelling of 218500106 in words is "two hundred eighteen million, five hundred thousand, one hundred six".