180318 has 16 divisors (see below), whose sum is σ = 369936. Its totient is φ = 58560.

The previous prime is 180317. The next prime is 180331. The reversal of 180318 is 813081.

It is a happy number.

It is a super-2 number, since 2×180318² = 65029162248, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 180294 and 180303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121 + ... + 612.

It is an arithmetic number, because the mean of its divisors is an integer number (23121).

2¹⁸⁰³¹⁸ is an apocalyptic number.

180318 is an abundant number, since it is smaller than the sum of its proper divisors (189618).

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

180318 is a wasteful number, since it uses less digits than its factorization.

180318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 180318 is about 424.6386699301. The cubic root of 180318 is about 56.4953921112.

Adding to 180318 its reverse (813081), we get a palindrome (993399).

The spelling of 180318 in words is "one hundred eighty thousand, three hundred eighteen".