180530872 has 32 divisors (see below), whose sum is σ = 348178320. Its totient is φ = 87701760.

The previous prime is 180530809. The next prime is 180530873. The reversal of 180530872 is 278035081.

180530872 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180530873) 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, 89863 + ... + 91849.

Almost surely, 2^180530872 is an apocalyptic number.

It is an amenable number.

180530872 is a deficient number, since it is larger than the sum of its proper divisors (167647448).

180530872 is a wasteful number, since it uses less digits than its factorization.

180530872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311 (or 2307 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 180530872 is about 13436.1777302922. The cubic root of 180530872 is about 565.1761499472.

The spelling of 180530872 in words is "one hundred eighty million, five hundred thirty thousand, eight hundred seventy-two".