230651689 has 2 divisors, whose sum is σ = 230651690. Its totient is φ = 230651688.

The previous prime is 230651677. The next prime is 230651713. The reversal of 230651689 is 986156032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147987225 + 82664464 = 12165^2 + 9092^2 .

It is a cyclic number.

It is not a de Polignac number, because 230651689 - 2¹⁷ = 230520617 is a prime.

It is not a weakly prime, because it can be changed into another prime (230651489) 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, 115325844 + 115325845.

It is an arithmetic number, because the mean of its divisors is an integer number (115325845).

Almost surely, 2^230651689 is an apocalyptic number.

It is an amenable number.

230651689 is a deficient number, since it is larger than the sum of its proper divisors (1).

230651689 is an equidigital number, since it uses as much as digits as its factorization.

230651689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 230651689 is about 15187.2212402401. The cubic root of 230651689 is about 613.2706957601.

The spelling of 230651689 in words is "two hundred thirty million, six hundred fifty-one thousand, six hundred eighty-nine".