268529317 has 4 divisors (see below), whose sum is σ = 306890656. Its totient is φ = 230167980.

The previous prime is 268529311. The next prime is 268529329. The reversal of 268529317 is 713925862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-268529317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268529311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19180659 + ... + 19180672.

It is an arithmetic number, because the mean of its divisors is an integer number (76722664).

Almost surely, 2^268529317 is an apocalyptic number.

It is an amenable number.

268529317 is a deficient number, since it is larger than the sum of its proper divisors (38361339).

268529317 is an equidigital number, since it uses as much as digits as its factorization.

268529317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38361338.

The product of its digits is 181440, while the sum is 43.

The square root of 268529317 is about 16386.8641600521. The cubic root of 268529317 is about 645.1547548463.

The spelling of 268529317 in words is "two hundred sixty-eight million, five hundred twenty-nine thousand, three hundred seventeen".