242676517 has 4 divisors (see below), whose sum is σ = 242749036. Its totient is φ = 242604000.

The previous prime is 242676503. The next prime is 242676521. The reversal of 242676517 is 715676242.

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 109181601 + 133494916 = 10449^2 + 11554^2 .

It is a cyclic number.

It is not a de Polignac number, because 242676517 - 2²⁷ = 108458789 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 242676517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242676817) 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 3 ways as a sum of consecutive naturals, for example, 30984 + ... + 38017.

It is an arithmetic number, because the mean of its divisors is an integer number (60687259).

Almost surely, 2^242676517 is an apocalyptic number.

It is an amenable number.

242676517 is a deficient number, since it is larger than the sum of its proper divisors (72519).

242676517 is an equidigital number, since it uses as much as digits as its factorization.

242676517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72518.

The product of its digits is 141120, while the sum is 40.

The square root of 242676517 is about 15578.0780907017. The cubic root of 242676517 is about 623.7481219965.

The spelling of 242676517 in words is "two hundred forty-two million, six hundred seventy-six thousand, five hundred seventeen".