242513617 has 2 divisors, whose sum is σ = 242513618. Its totient is φ = 242513616.

The previous prime is 242513611. The next prime is 242513641. The reversal of 242513617 is 716315242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151807041 + 90706576 = 12321^2 + 9524^2 .

It is a cyclic number.

It is not a de Polignac number, because 242513617 - 2¹¹ = 242511569 is a prime.

It is not a weakly prime, because it can be changed into another prime (242513611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121256808 + 121256809.

It is an arithmetic number, because the mean of its divisors is an integer number (121256809).

Almost surely, 2^242513617 is an apocalyptic number.

It is an amenable number.

242513617 is a deficient number, since it is larger than the sum of its proper divisors (1).

242513617 is an equidigital number, since it uses as much as digits as its factorization.

242513617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 242513617 is about 15572.8487117804. The cubic root of 242513617 is about 623.6085242112.

Adding to 242513617 its reverse (716315242), we get a palindrome (958828859).

The spelling of 242513617 in words is "two hundred forty-two million, five hundred thirteen thousand, six hundred seventeen".