230511565 has 16 divisors (see below), whose sum is σ = 280051200. Its totient is φ = 182129472.

The previous prime is 230511563. The next prime is 230511571. The reversal of 230511565 is 565115032.

It is a cyclic number.

It is not a de Polignac number, because 230511565 - 2¹ = 230511563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230511563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260614 + ... + 261496.

It is an arithmetic number, because the mean of its divisors is an integer number (17503200).

Almost surely, 2^230511565 is an apocalyptic number.

It is an amenable number.

230511565 is a deficient number, since it is larger than the sum of its proper divisors (49539635).

230511565 is a wasteful number, since it uses less digits than its factorization.

230511565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 230511565 is about 15182.6073189028. The cubic root of 230511565 is about 613.1464805401.

Adding to 230511565 its reverse (565115032), we get a palindrome (795626597).

The spelling of 230511565 in words is "two hundred thirty million, five hundred eleven thousand, five hundred sixty-five".