265243163 has 8 divisors (see below), whose sum is σ = 280992240. Its totient is φ = 249510400.

The previous prime is 265243157. The next prime is 265243171. The reversal of 265243163 is 361342562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 265243163 - 2¹⁰ = 265242139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265243123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49988 + ... + 55038.

It is an arithmetic number, because the mean of its divisors is an integer number (35124030).

Almost surely, 2^265243163 is an apocalyptic number.

265243163 is a deficient number, since it is larger than the sum of its proper divisors (15749077).

265243163 is a wasteful number, since it uses less digits than its factorization.

265243163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157.

The product of its digits is 25920, while the sum is 32.

The square root of 265243163 is about 16286.2875757491. The cubic root of 265243163 is about 642.5122309894.

The spelling of 265243163 in words is "two hundred sixty-five million, two hundred forty-three thousand, one hundred sixty-three".