268745353 has 2 divisors, whose sum is σ = 268745354. Its totient is φ = 268745352.

The previous prime is 268745341. The next prime is 268745357. The reversal of 268745353 is 353547862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220136569 + 48608784 = 14837^2 + 6972^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268745353 is a prime.

It is a super-3 number, since 3×268745353³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (268745357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134372676 + 134372677.

It is an arithmetic number, because the mean of its divisors is an integer number (134372677).

Almost surely, 2^268745353 is an apocalyptic number.

It is an amenable number.

268745353 is a deficient number, since it is larger than the sum of its proper divisors (1).

268745353 is an equidigital number, since it uses as much as digits as its factorization.

268745353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 43.

The square root of 268745353 is about 16393.4545779711. The cubic root of 268745353 is about 645.3277208052.

The spelling of 268745353 in words is "two hundred sixty-eight million, seven hundred forty-five thousand, three hundred fifty-three".