231223574 has 4 divisors (see below), whose sum is σ = 346835364. Its totient is φ = 115611786.

The previous prime is 231223549. The next prime is 231223591. The reversal of 231223574 is 475322132.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57805892 + ... + 57805895.

It is an arithmetic number, because the mean of its divisors is an integer number (86708841).

Almost surely, 2^231223574 is an apocalyptic number.

231223574 is a deficient number, since it is larger than the sum of its proper divisors (115611790).

231223574 is a wasteful number, since it uses less digits than its factorization.

231223574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115611789.

The product of its digits is 10080, while the sum is 29.

The square root of 231223574 is about 15206.0374193937. The cubic root of 231223574 is about 613.7771316038. Note that the first 3 decimals are identical.

The spelling of 231223574 in words is "two hundred thirty-one million, two hundred twenty-three thousand, five hundred seventy-four".