230213857 has 2 divisors, whose sum is σ = 230213858. Its totient is φ = 230213856.

The previous prime is 230213807. The next prime is 230213891. The reversal of 230213857 is 758312032.

230213857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173422561 + 56791296 = 13169^2 + 7536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230213857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (230213807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115106928 + 115106929.

It is an arithmetic number, because the mean of its divisors is an integer number (115106929).

Almost surely, 2^230213857 is an apocalyptic number.

It is an amenable number.

230213857 is a deficient number, since it is larger than the sum of its proper divisors (1).

230213857 is an equidigital number, since it uses as much as digits as its factorization.

230213857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 230213857 is about 15172.7999064115. The cubic root of 230213857 is about 612.8824052108.

Adding to 230213857 its reverse (758312032), we get a palindrome (988525889).

The spelling of 230213857 in words is "two hundred thirty million, two hundred thirteen thousand, eight hundred fifty-seven".