231994 has 16 divisors (see below), whose sum is σ = 404928. Its totient is φ = 97632.

The previous prime is 231967. The next prime is 232003. The reversal of 231994 is 499132.

It is a happy number.

231994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 909 + ... + 1135.

It is an arithmetic number, because the mean of its divisors is an integer number (25308).

2²³¹⁹⁹⁴ is an apocalyptic number.

231994 is a deficient number, since it is larger than the sum of its proper divisors (172934).

231994 is a wasteful number, since it uses less digits than its factorization.

231994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its digits is 1944, while the sum is 28.

The square root of 231994 is about 481.6575547004. The cubic root of 231994 is about 61.4458067994.

It can be divided in two parts, 231 and 994, that added together give a triangular number (1225 = T₄₉).

The spelling of 231994 in words is "two hundred thirty-one thousand, nine hundred ninety-four".