268861097 has 2 divisors, whose sum is σ = 268861098. Its totient is φ = 268861096.

The previous prime is 268861093. The next prime is 268861111. The reversal of 268861097 is 790168862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248031001 + 20830096 = 15749^2 + 4564^2 .

It is a cyclic number.

It is not a de Polignac number, because 268861097 - 2² = 268861093 is a prime.

It is not a weakly prime, because it can be changed into another prime (268861093) 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, 134430548 + 134430549.

It is an arithmetic number, because the mean of its divisors is an integer number (134430549).

Almost surely, 2^268861097 is an apocalyptic number.

It is an amenable number.

268861097 is a deficient number, since it is larger than the sum of its proper divisors (1).

268861097 is an equidigital number, since it uses as much as digits as its factorization.

268861097 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 268861097 is about 16396.9843873805. The cubic root of 268861097 is about 645.4203513574.

The spelling of 268861097 in words is "two hundred sixty-eight million, eight hundred sixty-one thousand, ninety-seven".