268812529 has 2 divisors, whose sum is σ = 268812530. Its totient is φ = 268812528.

The previous prime is 268812487. The next prime is 268812547. The reversal of 268812529 is 925218862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150111504 + 118701025 = 12252^2 + 10895^2 .

It is a cyclic number.

It is not a de Polignac number, because 268812529 - 2¹¹ = 268810481 is a prime.

It is not a weakly prime, because it can be changed into another prime (268812559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134406264 + 134406265.

It is an arithmetic number, because the mean of its divisors is an integer number (134406265).

Almost surely, 2^268812529 is an apocalyptic number.

It is an amenable number.

268812529 is a deficient number, since it is larger than the sum of its proper divisors (1).

268812529 is an equidigital number, since it uses as much as digits as its factorization.

268812529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 43.

The square root of 268812529 is about 16395.5033164584. The cubic root of 268812529 is about 645.3814853609.

The spelling of 268812529 in words is "two hundred sixty-eight million, eight hundred twelve thousand, five hundred twenty-nine".