242307565 has 4 divisors (see below), whose sum is σ = 290769084. Its totient is φ = 193846048.

The previous prime is 242307539. The next prime is 242307587. The reversal of 242307565 is 565703242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 180794916 + 61512649 = 13446^2 + 7843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242307565 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 242307565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24230752 + ... + 24230761.

It is an arithmetic number, because the mean of its divisors is an integer number (72692271).

Almost surely, 2^242307565 is an apocalyptic number.

It is an amenable number.

242307565 is a deficient number, since it is larger than the sum of its proper divisors (48461519).

242307565 is an equidigital number, since it uses as much as digits as its factorization.

242307565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48461518.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 242307565 is about 15566.2315606572. The cubic root of 242307565 is about 623.4318575775.

The spelling of 242307565 in words is "two hundred forty-two million, three hundred seven thousand, five hundred sixty-five".