231331874 has 4 divisors (see below), whose sum is σ = 346997814. Its totient is φ = 115665936.

The previous prime is 231331871. The next prime is 231331879. The reversal of 231331874 is 478133132.

231331874 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 226291849 + 5040025 = 15043^2 + 2245^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231331874.

It is not an unprimeable number, because it can be changed into a prime (231331871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57832967 + ... + 57832970.

Almost surely, 2^231331874 is an apocalyptic number.

231331874 is a deficient number, since it is larger than the sum of its proper divisors (115665940).

231331874 is a wasteful number, since it uses less digits than its factorization.

231331874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115665939.

The product of its digits is 12096, while the sum is 32.

The square root of 231331874 is about 15209.5980880495. The cubic root of 231331874 is about 613.8729431841.

The spelling of 231331874 in words is "two hundred thirty-one million, three hundred thirty-one thousand, eight hundred seventy-four".