268164529 has 4 divisors (see below), whose sum is σ = 268221220. Its totient is φ = 268107840.

The previous prime is 268164509. The next prime is 268164557. The reversal of 268164529 is 925461862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181171600 + 86992929 = 13460^2 + 9327^2 .

It is a cyclic number.

It is not a de Polignac number, because 268164529 - 2⁵ = 268164497 is a prime.

It is a super-2 number, since 2×268164529² = 143824429227583682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268164509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20532 + ... + 30949.

It is an arithmetic number, because the mean of its divisors is an integer number (67055305).

Almost surely, 2^268164529 is an apocalyptic number.

It is an amenable number.

268164529 is a deficient number, since it is larger than the sum of its proper divisors (56691).

268164529 is an equidigital number, since it uses as much as digits as its factorization.

268164529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56690.

The product of its digits is 207360, while the sum is 43.

The square root of 268164529 is about 16375.7298768635. The cubic root of 268164529 is about 644.8624821501.

The spelling of 268164529 in words is "two hundred sixty-eight million, one hundred sixty-four thousand, five hundred twenty-nine".