247171 has 4 divisors (see below), whose sum is σ = 260200. Its totient is φ = 234144.

The previous prime is 247141. The next prime is 247183. The reversal of 247171 is 171742.

247171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 247171 - 2¹⁷ = 116099 is a prime.

It is a super-2 number, since 2×247171² = 122187006482, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (247141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6486 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (65050).

2²⁴⁷¹⁷¹ is an apocalyptic number.

247171 is a deficient number, since it is larger than the sum of its proper divisors (13029).

247171 is a wasteful number, since it uses less digits than its factorization.

247171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13028.

The product of its digits is 392, while the sum is 22.

The square root of 247171 is about 497.1629511538. The cubic root of 247171 is about 62.7575294003.

The spelling of 247171 in words is "two hundred forty-seven thousand, one hundred seventy-one", and thus it is an iban number.