231471 has 8 divisors (see below), whose sum is σ = 342960. Its totient is φ = 154296.

The previous prime is 231463. The next prime is 231479. The reversal of 231471 is 174132.

231471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231463) and next prime (231479).

It is not a de Polignac number, because 231471 - 2³ = 231463 is a prime.

It is a super-3 number, since 3×231471³ = 37205831799900333, which contains 333 as substring.

231471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231479) 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, 4260 + ... + 4313.

It is an arithmetic number, because the mean of its divisors is an integer number (42870).

2²³¹⁴⁷¹ is an apocalyptic number.

231471 is a deficient number, since it is larger than the sum of its proper divisors (111489).

231471 is an equidigital number, since it uses as much as digits as its factorization.

231471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582 (or 8576 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 231471 is about 481.1143315263. The cubic root of 231471 is about 61.3995982248.

It can be divided in two parts, 231 and 471, that multiplied together give a palindrome (108801).

The spelling of 231471 in words is "two hundred thirty-one thousand, four hundred seventy-one".