230999009 has 16 divisors (see below), whose sum is σ = 249711696. Its totient is φ = 212889600.

The previous prime is 230999003. The next prime is 230999047. The reversal of 230999009 is 900999032.

230999009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3139984 + 227859025 = 1772^2 + 15095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230999009 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230999003) 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, 349139 + ... + 349799.

It is an arithmetic number, because the mean of its divisors is an integer number (15606981).

Almost surely, 2^230999009 is an apocalyptic number.

It is an amenable number.

230999009 is a deficient number, since it is larger than the sum of its proper divisors (18712687).

230999009 is a wasteful number, since it uses less digits than its factorization.

230999009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076.

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 230999009 is about 15198.6515520292. The cubic root of 230999009 is about 613.5783665378.

The spelling of 230999009 in words is "two hundred thirty million, nine hundred ninety-nine thousand, nine".