200172 has 24 divisors (see below), whose sum is σ = 534016. Its totient is φ = 57168.

The previous prime is 200171. The next prime is 200177. The reversal of 200172 is 271002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (200171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108 + ... + 1275.

2²⁰⁰¹⁷² is an apocalyptic number.

It is an amenable number.

200172 is an abundant number, since it is smaller than the sum of its proper divisors (333844).

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

200172 is a wasteful number, since it uses less digits than its factorization.

200172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 200172 is about 447.4058560189. The cubic root of 200172 is about 58.4971143291.

Adding to 200172 its reverse (271002), we get a palindrome (471174).

The spelling of 200172 in words is "two hundred thousand, one hundred seventy-two", and thus it is an iban number.