231087568 has 20 divisors (see below), whose sum is σ = 450239040. Its totient is φ = 114896864.

The previous prime is 231087539. The next prime is 231087629. The reversal of 231087568 is 865780132.

231087568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231087568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37480 + ... + 43207.

It is an arithmetic number, because the mean of its divisors is an integer number (22511952).

Almost surely, 2^231087568 is an apocalyptic number.

It is an amenable number.

231087568 is a deficient number, since it is larger than the sum of its proper divisors (219151472).

231087568 is a wasteful number, since it uses less digits than its factorization.

231087568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80874 (or 80868 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 231087568 is about 15201.5646563109. The cubic root of 231087568 is about 613.6567665049.

The spelling of 231087568 in words is "two hundred thirty-one million, eighty-seven thousand, five hundred sixty-eight".