268900193 has 2 divisors, whose sum is σ = 268900194. Its totient is φ = 268900192.

The previous prime is 268900189. The next prime is 268900211. The reversal of 268900193 is 391009862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268730449 + 169744 = 16393^2 + 412^2 .

It is a cyclic number.

It is not a de Polignac number, because 268900193 - 2² = 268900189 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268900133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134450096 + 134450097.

It is an arithmetic number, because the mean of its divisors is an integer number (134450097).

Almost surely, 2^268900193 is an apocalyptic number.

It is an amenable number.

268900193 is a deficient number, since it is larger than the sum of its proper divisors (1).

268900193 is an equidigital number, since it uses as much as digits as its factorization.

268900193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 268900193 is about 16398.1765144787. The cubic root of 268900193 is about 645.4516340921.

The spelling of 268900193 in words is "two hundred sixty-eight million, nine hundred thousand, one hundred ninety-three".