231843 has 8 divisors (see below), whose sum is σ = 312400. Its totient is φ = 152928.

The previous prime is 231841. The next prime is 231859. The reversal of 231843 is 348132.

It is a happy number.

231843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 231843 - 2¹ = 231841 is a prime.

It is the 482-nd Hogben number.

It is a Duffinian number.

231843 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (231841) by changing a digit.

It is a nontrivial repunit in base 481.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28 + ... + 681.

It is an arithmetic number, because the mean of its divisors is an integer number (39050).

2²³¹⁸⁴³ is an apocalyptic number.

231843 is a deficient number, since it is larger than the sum of its proper divisors (80557).

231843 is a wasteful number, since it uses less digits than its factorization.

231843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821.

The product of its digits is 576, while the sum is 21.

The square root of 231843 is about 481.5007788156. The cubic root of 231843 is about 61.4324726462.

Adding to 231843 its reverse (348132), we get a palindrome (579975).

The spelling of 231843 in words is "two hundred thirty-one thousand, eight hundred forty-three".