231171 has 8 divisors (see below), whose sum is σ = 310464. Its totient is φ = 153000.

The previous prime is 231169. The next prime is 231197. The reversal of 231171 is 171132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231171 - 2¹ = 231169 is a prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 231171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231131) 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, 600 + ... + 906.

It is an arithmetic number, because the mean of its divisors is an integer number (38808).

2²³¹¹⁷¹ is an apocalyptic number.

231171 is a deficient number, since it is larger than the sum of its proper divisors (79293).

231171 is a wasteful number, since it uses less digits than its factorization.

231171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its digits is 42, while the sum is 15.

The square root of 231171 is about 480.8024542367. The cubic root of 231171 is about 61.3730609293.

The spelling of 231171 in words is "two hundred thirty-one thousand, one hundred seventy-one".