180812 has 12 divisors (see below), whose sum is σ = 335160. Its totient is φ = 85056.

The previous prime is 180811. The next prime is 180847. The reversal of 180812 is 218081.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 180812.

It is not an unprimeable number, because it can be changed into a prime (180811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262 + ... + 1397.

It is an arithmetic number, because the mean of its divisors is an integer number (27930).

2¹⁸⁰⁸¹² is an apocalyptic number.

It is an amenable number.

180812 is a deficient number, since it is larger than the sum of its proper divisors (154348).

180812 is a wasteful number, since it uses less digits than its factorization.

180812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680 (or 2678 counting only the distinct ones).

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

The square root of 180812 is about 425.2199430883. The cubic root of 180812 is about 56.5469367456.

Adding to 180812 its reverse (218081), we get a palindrome (398893).

The spelling of 180812 in words is "one hundred eighty thousand, eight hundred twelve".