268968131 has 2 divisors, whose sum is σ = 268968132. Its totient is φ = 268968130.

The previous prime is 268968113. The next prime is 268968143. The reversal of 268968131 is 131869862.

Together with previous prime (268968113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268968131 - 2²⁶ = 201859267 is a prime.

It is a super-2 number, since 2×268968131² = 144687710987266322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (268968181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134484065 + 134484066.

It is an arithmetic number, because the mean of its divisors is an integer number (134484066).

Almost surely, 2^268968131 is an apocalyptic number.

268968131 is a deficient number, since it is larger than the sum of its proper divisors (1).

268968131 is an equidigital number, since it uses as much as digits as its factorization.

268968131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 268968131 is about 16400.2478944679. The cubic root of 268968131 is about 645.5059875930.

The spelling of 268968131 in words is "two hundred sixty-eight million, nine hundred sixty-eight thousand, one hundred thirty-one".