230613491 has 2 divisors, whose sum is σ = 230613492. Its totient is φ = 230613490.

The previous prime is 230613457. The next prime is 230613499. The reversal of 230613491 is 194316032.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230613491 is a prime.

It is equal to p_12674441 and since 230613491 and 12674441 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (230613499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115306745 + 115306746.

It is an arithmetic number, because the mean of its divisors is an integer number (115306746).

Almost surely, 2^230613491 is an apocalyptic number.

230613491 is a deficient number, since it is larger than the sum of its proper divisors (1).

230613491 is an equidigital number, since it uses as much as digits as its factorization.

230613491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 230613491 is about 15185.9636177623. The cubic root of 230613491 is about 613.2368395049.

The spelling of 230613491 in words is "two hundred thirty million, six hundred thirteen thousand, four hundred ninety-one".