181180 has 12 divisors (see below), whose sum is σ = 380520. Its totient is φ = 72464.

The previous prime is 181157. The next prime is 181183. The reversal of 181180 is 81181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4510 + ... + 4549.

It is an arithmetic number, because the mean of its divisors is an integer number (31710).

2¹⁸¹¹⁸⁰ is an apocalyptic number.

181180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

181180 is an abundant number, since it is smaller than the sum of its proper divisors (199340).

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

181180 is a wasteful number, since it uses less digits than its factorization.

181180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9068 (or 9066 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 181180 is about 425.6524403783. The cubic root of 181180 is about 56.5852733811.

Subtracting from 181180 its reverse (81181), we obtain a palindrome (99999).

It can be divided in two parts, 1811 and 80, that added together give a triangular number (1891 = T₆₁).

The spelling of 181180 in words is "one hundred eighty-one thousand, one hundred eighty".