103218 has 8 divisors (see below), whose sum is σ = 206448. Its totient is φ = 34404.

The previous prime is 103217. The next prime is 103231. The reversal of 103218 is 812301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

103218 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 103197 and 103206.

It is not an unprimeable number, because it can be changed into a prime (103217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8596 + ... + 8607.

It is an arithmetic number, because the mean of its divisors is an integer number (25806).

2¹⁰³²¹⁸ is an apocalyptic number.

103218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103218 is a wasteful number, since it uses less digits than its factorization.

103218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17208.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 103218 is about 321.2755826390. The cubic root of 103218 is about 46.9085289005.

Adding to 103218 its reverse (812301), we get a palindrome (915519).

The spelling of 103218 in words is "one hundred three thousand, two hundred eighteen".