268274533 has 2 divisors, whose sum is σ = 268274534. Its totient is φ = 268274532.

The previous prime is 268274519. The next prime is 268274537. The reversal of 268274533 is 335472862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243890689 + 24383844 = 15617^2 + 4938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268274533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268274537) 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, 134137266 + 134137267.

It is an arithmetic number, because the mean of its divisors is an integer number (134137267).

Almost surely, 2^268274533 is an apocalyptic number.

It is an amenable number.

268274533 is a deficient number, since it is larger than the sum of its proper divisors (1).

268274533 is an equidigital number, since it uses as much as digits as its factorization.

268274533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

The square root of 268274533 is about 16379.0882835401. The cubic root of 268274533 is about 644.9506466253.

The spelling of 268274533 in words is "two hundred sixty-eight million, two hundred seventy-four thousand, five hundred thirty-three".