230686091 has 2 divisors, whose sum is σ = 230686092. Its totient is φ = 230686090.

The previous prime is 230686069. The next prime is 230686103. The reversal of 230686091 is 190686032.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230686091 is a prime.

It is not a weakly prime, because it can be changed into another prime (230686591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115343045 + 115343046.

It is an arithmetic number, because the mean of its divisors is an integer number (115343046).

Almost surely, 2^230686091 is an apocalyptic number.

230686091 is a deficient number, since it is larger than the sum of its proper divisors (1).

230686091 is an equidigital number, since it uses as much as digits as its factorization.

230686091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 230686091 is about 15188.3537949312. The cubic root of 230686091 is about 613.3011842855.

The spelling of 230686091 in words is "two hundred thirty million, six hundred eighty-six thousand, ninety-one".