180180321 has 16 divisors (see below), whose sum is σ = 254223360. Its totient is φ = 113276240.

The previous prime is 180180317. The next prime is 180180359. The reversal of 180180321 is 123081081.

It is not a de Polignac number, because 180180321 - 2² = 180180317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180180291 and 180180300.

It is not an unprimeable number, because it can be changed into a prime (180180311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13491 + ... + 23288.

It is an arithmetic number, because the mean of its divisors is an integer number (15888960).

Almost surely, 2^180180321 is an apocalyptic number.

It is an amenable number.

180180321 is a deficient number, since it is larger than the sum of its proper divisors (74043039).

180180321 is a wasteful number, since it uses less digits than its factorization.

180180321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36876.

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

The square root of 180180321 is about 13423.1263496996. The cubic root of 180180321 is about 564.8100972459.

The spelling of 180180321 in words is "one hundred eighty million, one hundred eighty thousand, three hundred twenty-one".