230387191 has 2 divisors, whose sum is σ = 230387192. Its totient is φ = 230387190.

The previous prime is 230387189. The next prime is 230387203. The reversal of 230387191 is 191783032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230387191 - 2¹ = 230387189 is a prime.

Together with 230387189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230387291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115193595 + 115193596.

It is an arithmetic number, because the mean of its divisors is an integer number (115193596).

Almost surely, 2^230387191 is an apocalyptic number.

230387191 is a deficient number, since it is larger than the sum of its proper divisors (1).

230387191 is an equidigital number, since it uses as much as digits as its factorization.

230387191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 230387191 is about 15178.5108294589. The cubic root of 230387191 is about 613.0361849896.

The spelling of 230387191 in words is "two hundred thirty million, three hundred eighty-seven thousand, one hundred ninety-one".