180131116 has 48 divisors (see below), whose sum is σ = 365837472. Its totient is φ = 76697600.

The previous prime is 180131113. The next prime is 180131179. The reversal of 180131116 is 611131081.

180131116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (180131113) 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, 209760 + ... + 210616.

It is an arithmetic number, because the mean of its divisors is an integer number (7621614).

Almost surely, 2^180131116 is an apocalyptic number.

It is an amenable number.

180131116 is an abundant number, since it is smaller than the sum of its proper divisors (185706356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180131116 is a wasteful number, since it uses less digits than its factorization.

180131116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 180131116 is about 13421.2933802968. The cubic root of 180131116 is about 564.7586783656.

Adding to 180131116 its reverse (611131081), we get a palindrome (791262197).

The spelling of 180131116 in words is "one hundred eighty million, one hundred thirty-one thousand, one hundred sixteen".