231530834 has 16 divisors (see below), whose sum is σ = 370827072. Its totient is φ = 108156048.

The previous prime is 231530833. The next prime is 231530839. The reversal of 231530834 is 438035132.

231530834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231530797 and 231530806.

It is not an unprimeable number, because it can be changed into a prime (231530833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56549 + ... + 60504.

It is an arithmetic number, because the mean of its divisors is an integer number (23176692).

Almost surely, 2^231530834 is an apocalyptic number.

231530834 is a deficient number, since it is larger than the sum of its proper divisors (139296238).

231530834 is a wasteful number, since it uses less digits than its factorization.

231530834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117121.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 231530834 is about 15216.1372890757. The cubic root of 231530834 is about 614.0488825685.

Adding to 231530834 its reverse (438035132), we get a palindrome (669565966).

The spelling of 231530834 in words is "two hundred thirty-one million, five hundred thirty thousand, eight hundred thirty-four".