230691289 has 4 divisors (see below), whose sum is σ = 230755456. Its totient is φ = 230627124.

The previous prime is 230691281. The next prime is 230691299. The reversal of 230691289 is 982196032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230691289 - 2³ = 230691281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230691281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26349 + ... + 33994.

It is an arithmetic number, because the mean of its divisors is an integer number (57688864).

Almost surely, 2^230691289 is an apocalyptic number.

It is an amenable number.

230691289 is a deficient number, since it is larger than the sum of its proper divisors (64167).

230691289 is an equidigital number, since it uses as much as digits as its factorization.

230691289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64166.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 230691289 is about 15188.5249119195. The cubic root of 230691289 is about 613.3057907121.

The spelling of 230691289 in words is "two hundred thirty million, six hundred ninety-one thousand, two hundred eighty-nine".