180218 has 8 divisors (see below), whose sum is σ = 272160. Its totient is φ = 89500.

The previous prime is 180211. The next prime is 180221. The reversal of 180218 is 812081.

180218 = 117² + 118² + ... + 128².

180218 is nontrivially palindromic in base 4.

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

It is a plaindrome in base 11.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 180218.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 180218.

It is not an unprimeable number, because it can be changed into a prime (180211) 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, 323 + ... + 681.

It is an arithmetic number, because the mean of its divisors is an integer number (34020).

2¹⁸⁰²¹⁸ is an apocalyptic number.

180218 is a deficient number, since it is larger than the sum of its proper divisors (91942).

180218 is a wasteful number, since it uses less digits than its factorization.

180218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 180218 is about 424.5209064345. The cubic root of 180218 is about 56.4849465208.

Adding to 180218 its reverse (812081), we get a palindrome (992299).

The spelling of 180218 in words is "one hundred eighty thousand, two hundred eighteen".