265243027 has 12 divisors (see below), whose sum is σ = 326698920. Its totient is φ = 213976896.

The previous prime is 265243009. The next prime is 265243031. The reversal of 265243027 is 720342562.

It is not a de Polignac number, because 265243027 - 2¹⁵ = 265210259 is a prime.

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 265243027.

It is not an unprimeable number, because it can be changed into a prime (265243057) 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 11 ways as a sum of consecutive naturals, for example, 158377 + ... + 160042.

It is an arithmetic number, because the mean of its divisors is an integer number (27224910).

Almost surely, 2^265243027 is an apocalyptic number.

265243027 is a deficient number, since it is larger than the sum of its proper divisors (61455893).

265243027 is a wasteful number, since it uses less digits than its factorization.

265243027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318450 (or 318443 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 265243027 is about 16286.2834004570. The cubic root of 265243027 is about 642.5121211761.

Adding to 265243027 its reverse (720342562), we get a palindrome (985585589).

The spelling of 265243027 in words is "two hundred sixty-five million, two hundred forty-three thousand, twenty-seven".