180618 has 8 divisors (see below), whose sum is σ = 361248. Its totient is φ = 60204.

The previous prime is 180617. The next prime is 180623. The reversal of 180618 is 816081.

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

180618 is an admirable number.

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (180617) 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, 15046 + ... + 15057.

It is an arithmetic number, because the mean of its divisors is an integer number (45156).

2¹⁸⁰⁶¹⁸ is an apocalyptic number.

180618 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.

180618 is a wasteful number, since it uses less digits than its factorization.

180618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30108.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 180618 is about 424.9917646261. The cubic root of 180618 is about 56.5267057294.

Adding to 180618 its reverse (816081), we get a palindrome (996699).

The spelling of 180618 in words is "one hundred eighty thousand, six hundred eighteen".