231743 has 4 divisors (see below), whose sum is σ = 243960. Its totient is φ = 219528.

The previous prime is 231719. The next prime is 231779. The reversal of 231743 is 347132.

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 231743 - 2¹⁰ = 230719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6080 + ... + 6117.

It is an arithmetic number, because the mean of its divisors is an integer number (60990).

2²³¹⁷⁴³ is an apocalyptic number.

231743 is a deficient number, since it is larger than the sum of its proper divisors (12217).

231743 is a wasteful number, since it uses less digits than its factorization.

231743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12216.

The product of its digits is 504, while the sum is 20.

The square root of 231743 is about 481.3969256238. The cubic root of 231743 is about 61.4236388942.

Adding to 231743 its reverse (347132), we get a palindrome (578875).

The spelling of 231743 in words is "two hundred thirty-one thousand, seven hundred forty-three".