231974 has 4 divisors (see below), whose sum is σ = 347964. Its totient is φ = 115986.

The previous prime is 231967. The next prime is 232003. The reversal of 231974 is 479132.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231974.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57992 + ... + 57995.

It is an arithmetic number, because the mean of its divisors is an integer number (86991).

2²³¹⁹⁷⁴ is an apocalyptic number.

231974 is a deficient number, since it is larger than the sum of its proper divisors (115990).

231974 is a wasteful number, since it uses less digits than its factorization.

231974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115989.

The product of its digits is 1512, while the sum is 26.

The square root of 231974 is about 481.6367926145. The cubic root of 231974 is about 61.4440410188. Note that the first 3 decimals are identical.

The spelling of 231974 in words is "two hundred thirty-one thousand, nine hundred seventy-four".