256068269 has 6 divisors (see below), whose sum is σ = 267686286. Its totient is φ = 244934360.

The previous prime is 256068259. The next prime is 256068299. The reversal of 256068269 is 962860652.

It can be written as a sum of positive squares in only one way, i.e., 168870025 + 87198244 = 12995^2 + 9338^2 .

It is not a de Polignac number, because 256068269 - 2¹² = 256064173 is a prime.

It is a super-2 number, since 2×256068269² = 131141916777312722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256068209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 241502 + ... + 242559.

It is an arithmetic number, because the mean of its divisors is an integer number (44614381).

Almost surely, 2^256068269 is an apocalyptic number.

It is an amenable number.

256068269 is a deficient number, since it is larger than the sum of its proper divisors (11618017).

256068269 is an equidigital number, since it uses as much as digits as its factorization.

256068269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484107 (or 484084 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 256068269 is about 16002.1332640370. The cubic root of 256068269 is about 635.0168586261.

The spelling of 256068269 in words is "two hundred fifty-six million, sixty-eight thousand, two hundred sixty-nine".