265242069 has 12 divisors (see below), whose sum is σ = 388376716. Its totient is φ = 174405312.

The previous prime is 265242037. The next prime is 265242077. The reversal of 265242069 is 960242562.

It can be written as a sum of positive squares in 2 ways, for example, as 164480625 + 100761444 = 12825^2 + 10038^2 .

It is not a de Polignac number, because 265242069 - 2⁵ = 265242037 is a prime.

It is a super-2 number, since 2×265242069² = 140706710334801522, 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 (265242569) 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, 201202 + ... + 202515.

Almost surely, 2^265242069 is an apocalyptic number.

It is an amenable number.

265242069 is a deficient number, since it is larger than the sum of its proper divisors (123134647).

265242069 is a wasteful number, since it uses less digits than its factorization.

265242069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403796 (or 403793 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 265242069 is about 16286.2539891775. The cubic root of 265242069 is about 642.5113476373.

The spelling of 265242069 in words is "two hundred sixty-five million, two hundred forty-two thousand, sixty-nine".