230029861 has 2 divisors, whose sum is σ = 230029862. Its totient is φ = 230029860.

The previous prime is 230029859. The next prime is 230029867. The reversal of 230029861 is 168920032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115132900 + 114896961 = 10730^2 + 10719^2 .

It is a cyclic number.

It is not a de Polignac number, because 230029861 - 2¹ = 230029859 is a prime.

Together with 230029859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230029867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115014930 + 115014931.

It is an arithmetic number, because the mean of its divisors is an integer number (115014931).

Almost surely, 2^230029861 is an apocalyptic number.

It is an amenable number.

230029861 is a deficient number, since it is larger than the sum of its proper divisors (1).

230029861 is an equidigital number, since it uses as much as digits as its factorization.

230029861 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 230029861 is about 15166.7353441669. The cubic root of 230029861 is about 612.7190817562.

Adding to 230029861 its reverse (168920032), we get a palindrome (398949893).

The spelling of 230029861 in words is "two hundred thirty million, twenty-nine thousand, eight hundred sixty-one".