242260216537 has 2 divisors, whose sum is σ = 242260216538. Its totient is φ = 242260216536.

The previous prime is 242260216397. The next prime is 242260216553. The reversal of 242260216537 is 735612062242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195628405401 + 46631811136 = 442299^2 + 215944^2 .

It is a cyclic number.

It is not a de Polignac number, because 242260216537 - 2³¹ = 240112732889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242260216537.

It is not a weakly prime, because it can be changed into another prime (242260216567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121130108268 + 121130108269.

It is an arithmetic number, because the mean of its divisors is an integer number (121130108269).

Almost surely, 2^242260216537 is an apocalyptic number.

It is an amenable number.

242260216537 is a deficient number, since it is larger than the sum of its proper divisors (1).

242260216537 is an equidigital number, since it uses as much as digits as its factorization.

242260216537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 40.

Adding to 242260216537 its reverse (735612062242), we get a palindrome (977872278779).

The spelling of 242260216537 in words is "two hundred forty-two billion, two hundred sixty million, two hundred sixteen thousand, five hundred thirty-seven".