265242159 has 48 divisors (see below), whose sum is σ = 484341312. Its totient is φ = 136111104.

The previous prime is 265242151. The next prime is 265242199. The reversal of 265242159 is 951242562.

265242159 is a `hidden beast` number, since 265 + 242 + 159 = 666.

It is not a de Polignac number, because 265242159 - 2³ = 265242151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265242151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25927 + ... + 34679.

It is an arithmetic number, because the mean of its divisors is an integer number (10090444).

Almost surely, 2^265242159 is an apocalyptic number.

265242159 is a deficient number, since it is larger than the sum of its proper divisors (219099153).

265242159 is a wasteful number, since it uses less digits than its factorization.

265242159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8816 (or 8813 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 265242159 is about 16286.2567522436. The cubic root of 265242159 is about 642.5114203080.

The spelling of 265242159 in words is "two hundred sixty-five million, two hundred forty-two thousand, one hundred fifty-nine".