180382172 has 24 divisors (see below), whose sum is σ = 334711440. Its totient is φ = 84765440.

The previous prime is 180382159. The next prime is 180382187. The reversal of 180382172 is 271283081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62579 + ... + 65397.

It is an arithmetic number, because the mean of its divisors is an integer number (13946310).

Almost surely, 2^180382172 is an apocalyptic number.

It is an amenable number.

180382172 is a deficient number, since it is larger than the sum of its proper divisors (154329268).

180382172 is a wasteful number, since it uses less digits than its factorization.

180382172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781 (or 3779 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 180382172 is about 13430.6430225809. The cubic root of 180382172 is about 565.0209322132.

Subtracting 180382172 from its reverse (271283081), we obtain a palindrome (90900909).

The spelling of 180382172 in words is "one hundred eighty million, three hundred eighty-two thousand, one hundred seventy-two".