180287972 has 12 divisors (see below), whose sum is σ = 315598080. Its totient is φ = 90117096.

The previous prime is 180287969. The next prime is 180287981. The reversal of 180287972 is 279782081.

180287972 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21929 + ... + 29007.

It is an arithmetic number, because the mean of its divisors is an integer number (26299840).

Almost surely, 2^180287972 is an apocalyptic number.

It is an amenable number.

180287972 is a deficient number, since it is larger than the sum of its proper divisors (135310108).

180287972 is a wasteful number, since it uses less digits than its factorization.

180287972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13450 (or 13448 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 180287972 is about 13427.1356588068. The cubic root of 180287972 is about 564.9225591515.

The spelling of 180287972 in words is "one hundred eighty million, two hundred eighty-seven thousand, nine hundred seventy-two".