231814 has 16 divisors (see below), whose sum is σ = 390096. Its totient is φ = 102400.

The previous prime is 231809. The next prime is 231821. The reversal of 231814 is 418132.

It is a junction number, because it is equal to n+sod(n) for n = 231791 and 231800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (24381).

2²³¹⁸¹⁴ is an apocalyptic number.

231814 is a deficient number, since it is larger than the sum of its proper divisors (158282).

231814 is a wasteful number, since it uses less digits than its factorization.

231814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its digits is 192, while the sum is 19.

The square root of 231814 is about 481.4706636961. The cubic root of 231814 is about 61.4299111197.

Adding to 231814 its reverse (418132), we get a palindrome (649946).

It can be divided in two parts, 2318 and 14, that added together give a palindrome (2332).

The spelling of 231814 in words is "two hundred thirty-one thousand, eight hundred fourteen".