183172 has 24 divisors (see below), whose sum is σ = 366912. Its totient is φ = 79200.

The previous prime is 183167. The next prime is 183191. The reversal of 183172 is 271381.

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

It is an unprimeable number.

183172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922 + ... + 1102.

It is an arithmetic number, because the mean of its divisors is an integer number (15288).

2¹⁸³¹⁷² is an apocalyptic number.

It is an amenable number.

183172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

183172 is a wasteful number, since it uses less digits than its factorization.

183172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 217 counting only the distinct ones).

The product of its digits is 336, while the sum is 22.

The square root of 183172 is about 427.9859810788. The cubic root of 183172 is about 56.7918952927.

Subtracting 183172 from its reverse (271381), we obtain a square (88209 = 297²).

The spelling of 183172 in words is "one hundred eighty-three thousand, one hundred seventy-two".