180860172 has 48 divisors (see below), whose sum is σ = 429741312. Its totient is φ = 59192640.

The previous prime is 180860171. The next prime is 180860179. The reversal of 180860172 is 271068081.

It is a happy number.

180860172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (180860171) 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, 161358 + ... + 162474.

It is an arithmetic number, because the mean of its divisors is an integer number (8952944).

Almost surely, 2^180860172 is an apocalyptic number.

180860172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

180860172 is an abundant number, since it is smaller than the sum of its proper divisors (248881140).

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

180860172 is a wasteful number, since it uses less digits than its factorization.

180860172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 180860172 is about 13448.4263763460. The cubic root of 180860172 is about 565.5195805162.

The spelling of 180860172 in words is "one hundred eighty million, eight hundred sixty thousand, one hundred seventy-two".