171172 has 6 divisors (see below), whose sum is σ = 299558. Its totient is φ = 85584.

The previous prime is 171169. The next prime is 171179. The reversal of 171172 is 271171.

It can be written as a sum of positive squares in only one way, i.e., 147456 + 23716 = 384^2 + 154^2 .

It is not an unprimeable number, because it can be changed into a prime (171179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21393 + ... + 21400.

2¹⁷¹¹⁷² is an apocalyptic number.

It is an amenable number.

171172 is a deficient number, since it is larger than the sum of its proper divisors (128386).

171172 is a wasteful number, since it uses less digits than its factorization.

171172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42797 (or 42795 counting only the distinct ones).

The product of its digits is 98, while the sum is 19.

The square root of 171172 is about 413.7293801508. The cubic root of 171172 is about 55.5235946536.

Subtracting 171172 from its reverse (271171), we obtain a palindrome (99999).

It can be divided in two parts, 171 and 172, that added together give a palindrome (343).

The spelling of 171172 in words is "one hundred seventy-one thousand, one hundred seventy-two", and thus it is an iban number.