230351861 has 2 divisors, whose sum is σ = 230351862. Its totient is φ = 230351860.

The previous prime is 230351857. The next prime is 230351893. The reversal of 230351861 is 168153032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219336100 + 11015761 = 14810^2 + 3319^2 .

It is a cyclic number.

It is not a de Polignac number, because 230351861 - 2² = 230351857 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230351461) 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, 115175930 + 115175931.

It is an arithmetic number, because the mean of its divisors is an integer number (115175931).

Almost surely, 2^230351861 is an apocalyptic number.

It is an amenable number.

230351861 is a deficient number, since it is larger than the sum of its proper divisors (1).

230351861 is an equidigital number, since it uses as much as digits as its factorization.

230351861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 230351861 is about 15177.3469684263. The cubic root of 230351861 is about 613.0048469111.

The spelling of 230351861 in words is "two hundred thirty million, three hundred fifty-one thousand, eight hundred sixty-one".