230149813 has 2 divisors, whose sum is σ = 230149814. Its totient is φ = 230149812.

The previous prime is 230149789. The next prime is 230149847. The reversal of 230149813 is 318941032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206267044 + 23882769 = 14362^2 + 4887^2 .

It is a cyclic number.

It is not a de Polignac number, because 230149813 - 2¹⁷ = 230018741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230149883) 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, 115074906 + 115074907.

It is an arithmetic number, because the mean of its divisors is an integer number (115074907).

Almost surely, 2^230149813 is an apocalyptic number.

It is an amenable number.

230149813 is a deficient number, since it is larger than the sum of its proper divisors (1).

230149813 is an equidigital number, since it uses as much as digits as its factorization.

230149813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 230149813 is about 15170.6892724095. The cubic root of 230149813 is about 612.8255666381.

The spelling of 230149813 in words is "two hundred thirty million, one hundred forty-nine thousand, eight hundred thirteen".