230787239 has 2 divisors, whose sum is σ = 230787240. Its totient is φ = 230787238.

The previous prime is 230787233. The next prime is 230787251. The reversal of 230787239 is 932787032.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230787239 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 230787196 and 230787205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230787233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115393619 + 115393620.

It is an arithmetic number, because the mean of its divisors is an integer number (115393620).

Almost surely, 2^230787239 is an apocalyptic number.

230787239 is a deficient number, since it is larger than the sum of its proper divisors (1).

230787239 is an equidigital number, since it uses as much as digits as its factorization.

230787239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 230787239 is about 15191.6832181296. The cubic root of 230787239 is about 613.3908084201.

The spelling of 230787239 in words is "two hundred thirty million, seven hundred eighty-seven thousand, two hundred thirty-nine".