201172 has 12 divisors (see below), whose sum is σ = 370720. Its totient is φ = 95256.

The previous prime is 201167. The next prime is 201193. The reversal of 201172 is 271102.

It is a congruent number.

It is an unprimeable number.

201172 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 3 ways as a sum of consecutive naturals, for example, 1248 + ... + 1399.

2²⁰¹¹⁷² is an apocalyptic number.

It is an amenable number.

201172 is a deficient number, since it is larger than the sum of its proper divisors (169548).

201172 is a wasteful number, since it uses less digits than its factorization.

201172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670 (or 2668 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 201172 is about 448.5220172968. The cubic root of 201172 is about 58.5943639817.

Adding to 201172 its reverse (271102), we get a palindrome (472274).

It can be divided in two parts, 201 and 172, that added together give a palindrome (373).

The spelling of 201172 in words is "two hundred one thousand, one hundred seventy-two", and thus it is an iban number.