268681097 has 2 divisors, whose sum is σ = 268681098. Its totient is φ = 268681096.

The previous prime is 268681081. The next prime is 268681129. The reversal of 268681097 is 790186862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267780496 + 900601 = 16364^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 268681097 - 2⁴ = 268681081 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268681697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134340548 + 134340549.

It is an arithmetic number, because the mean of its divisors is an integer number (134340549).

Almost surely, 2^268681097 is an apocalyptic number.

It is an amenable number.

268681097 is a deficient number, since it is larger than the sum of its proper divisors (1).

268681097 is an equidigital number, since it uses as much as digits as its factorization.

268681097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 268681097 is about 16391.4946542407. The cubic root of 268681097 is about 645.2762848979.

The spelling of 268681097 in words is "two hundred sixty-eight million, six hundred eighty-one thousand, ninety-seven".