242242313 has 2 divisors, whose sum is σ = 242242314. Its totient is φ = 242242312.

The previous prime is 242242303. The next prime is 242242321. The reversal of 242242313 is 313242242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242206969 + 35344 = 15563^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 242242313 - 2¹⁶ = 242176777 is a prime.

It is not a weakly prime, because it can be changed into another prime (242242303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121121156 + 121121157.

It is an arithmetic number, because the mean of its divisors is an integer number (121121157).

Almost surely, 2^242242313 is an apocalyptic number.

It is an amenable number.

242242313 is a deficient number, since it is larger than the sum of its proper divisors (1).

242242313 is an equidigital number, since it uses as much as digits as its factorization.

242242313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 23.

The square root of 242242313 is about 15564.1354722966. The cubic root of 242242313 is about 623.3758903777.

Adding to 242242313 its reverse (313242242), we get a palindrome (555484555).

The spelling of 242242313 in words is "two hundred forty-two million, two hundred forty-two thousand, three hundred thirteen".