172271 is nontrivially palindromic in base 10.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is an Ulam number.
It is a Duffinian number.
It is a congruent number.
2172271 is an apocalyptic number.
172271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
172271 is a wasteful number, since it uses less digits than its factorization.
172271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15672.
The square root of 172271 is about 415.0554179866. The cubic root of 172271 is about 55.6421699300.
The spelling of 172271 in words is "one hundred seventy-two thousand, two hundred seventy-one", and thus it is an iban number.