118217 has 6 divisors (see below), whose sum is σ = 130074. Its totient is φ = 107360.

The previous prime is 118213. The next prime is 118219. The reversal of 118217 is 712811.

It can be written as a sum of positive squares in only one way, i.e., 116281 + 1936 = 341^2 + 44^2 .

It is not a de Polignac number, because 118217 - 2² = 118213 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 118217.

It is not an unprimeable number, because it can be changed into a prime (118211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 368 + ... + 609.

It is an arithmetic number, because the mean of its divisors is an integer number (21679).

2¹¹⁸²¹⁷ is an apocalyptic number.

It is an amenable number.

118217 is a deficient number, since it is larger than the sum of its proper divisors (11857).

118217 is an equidigital number, since it uses as much as digits as its factorization.

118217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 988 counting only the distinct ones).

The product of its digits is 112, while the sum is 20.

The square root of 118217 is about 343.8269913779. The cubic root of 118217 is about 49.0787294679.

It can be divided in two parts, 11 and 8217, that added together give a palindrome (8228).

The spelling of 118217 in words is "one hundred eighteen thousand, two hundred seventeen".