242643337 has 2 divisors, whose sum is σ = 242643338. Its totient is φ = 242643336.

The previous prime is 242643301. The next prime is 242643347. The reversal of 242643337 is 733346242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152374336 + 90269001 = 12344^2 + 9501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242643337 is a prime.

It is not a weakly prime, because it can be changed into another prime (242643347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121321668 + 121321669.

It is an arithmetic number, because the mean of its divisors is an integer number (121321669).

Almost surely, 2^242643337 is an apocalyptic number.

It is an amenable number.

242643337 is a deficient number, since it is larger than the sum of its proper divisors (1).

242643337 is an equidigital number, since it uses as much as digits as its factorization.

242643337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 34.

The square root of 242643337 is about 15577.0130962261. The cubic root of 242643337 is about 623.7196933346.

Adding to 242643337 its reverse (733346242), we get a palindrome (975989579).

The spelling of 242643337 in words is "two hundred forty-two million, six hundred forty-three thousand, three hundred thirty-seven".