269317081 has 12 divisors (see below), whose sum is σ = 298661076. Its totient is φ = 242654720.

The previous prime is 269317079. The next prime is 269317099. The reversal of 269317081 is 180713962.

It can be written as a sum of positive squares in 2 ways, for example, as 17015625 + 252301456 = 4125^2 + 15884^2 .

It is not a de Polignac number, because 269317081 - 2¹ = 269317079 is a prime.

It is a super-2 number, since 2×269317081² = 145063380236721122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 269317081.

It is not an unprimeable number, because it can be changed into a prime (269317481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3825 + ... + 23521.

It is an arithmetic number, because the mean of its divisors is an integer number (24888423).

Almost surely, 2^269317081 is an apocalyptic number.

It is an amenable number.

269317081 is a deficient number, since it is larger than the sum of its proper divisors (29343995).

269317081 is a wasteful number, since it uses less digits than its factorization.

269317081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19832 (or 19821 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 269317081 is about 16410.8830048843. The cubic root of 269317081 is about 645.7850193794.

The spelling of 269317081 in words is "two hundred sixty-nine million, three hundred seventeen thousand, eighty-one".