268315349 has 2 divisors, whose sum is σ = 268315350. Its totient is φ = 268315348.

The previous prime is 268315343. The next prime is 268315351. The reversal of 268315349 is 943513862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268140625 + 174724 = 16375^2 + 418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268315349 is a prime.

Together with 268315351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268315343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134157674 + 134157675.

It is an arithmetic number, because the mean of its divisors is an integer number (134157675).

Almost surely, 2^268315349 is an apocalyptic number.

It is an amenable number.

268315349 is a deficient number, since it is larger than the sum of its proper divisors (1).

268315349 is an equidigital number, since it uses as much as digits as its factorization.

268315349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 268315349 is about 16380.3342151496. The cubic root of 268315349 is about 644.9833531349.

The spelling of 268315349 in words is "two hundred sixty-eight million, three hundred fifteen thousand, three hundred forty-nine".