231068857 has 2 divisors, whose sum is σ = 231068858. Its totient is φ = 231068856.

The previous prime is 231068837. The next prime is 231068881. The reversal of 231068857 is 758860132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144504441 + 86564416 = 12021^2 + 9304^2 .

It is a cyclic number.

It is not a de Polignac number, because 231068857 - 2¹⁵ = 231036089 is a prime.

It is not a weakly prime, because it can be changed into another prime (231068837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115534428 + 115534429.

It is an arithmetic number, because the mean of its divisors is an integer number (115534429).

Almost surely, 2^231068857 is an apocalyptic number.

It is an amenable number.

231068857 is a deficient number, since it is larger than the sum of its proper divisors (1).

231068857 is an equidigital number, since it uses as much as digits as its factorization.

231068857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 231068857 is about 15200.9492137827. The cubic root of 231068857 is about 613.6402036037.

The spelling of 231068857 in words is "two hundred thirty-one million, sixty-eight thousand, eight hundred fifty-seven".