242681265 has 20 divisors (see below), whose sum is σ = 435029364. Its totient is φ = 129429792.

The previous prime is 242681233. The next prime is 242681269. The reversal of 242681265 is 562186242.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 149597361 + 93083904 = 12231^2 + 9648^2 .

It is not a de Polignac number, because 242681265 - 2⁵ = 242681233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242681269) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 299202 + ... + 300011.

Almost surely, 2^242681265 is an apocalyptic number.

It is an amenable number.

242681265 is a deficient number, since it is larger than the sum of its proper divisors (192348099).

242681265 is an equidigital number, since it uses as much as digits as its factorization.

242681265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599230 (or 599221 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 242681265 is about 15578.2304835947. The cubic root of 242681265 is about 623.7521898764.

The spelling of 242681265 in words is "two hundred forty-two million, six hundred eighty-one thousand, two hundred sixty-five".