230000557 has 2 divisors, whose sum is σ = 230000558. Its totient is φ = 230000556.

The previous prime is 230000543. The next prime is 230000597. The reversal of 230000557 is 755000032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149108521 + 80892036 = 12211^2 + 8994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230000557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230000597) 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, 115000278 + 115000279.

It is an arithmetic number, because the mean of its divisors is an integer number (115000279).

Almost surely, 2^230000557 is an apocalyptic number.

It is an amenable number.

230000557 is a deficient number, since it is larger than the sum of its proper divisors (1).

230000557 is an equidigital number, since it uses as much as digits as its factorization.

230000557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 230000557 is about 15165.7692518382. The cubic root of 230000557 is about 612.6930621163.

Adding to 230000557 its reverse (755000032), we get a palindrome (985000589).

The spelling of 230000557 in words is "two hundred thirty million, five hundred fifty-seven", and thus it is an aban number.