242419913 has 2 divisors, whose sum is σ = 242419914. Its totient is φ = 242419912.

The previous prime is 242419909. The next prime is 242419951. The reversal of 242419913 is 319914242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166590649 + 75829264 = 12907^2 + 8708^2 .

It is a cyclic number.

It is not a de Polignac number, because 242419913 - 2² = 242419909 is a prime.

It is not a weakly prime, because it can be changed into another prime (242419963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121209956 + 121209957.

It is an arithmetic number, because the mean of its divisors is an integer number (121209957).

Almost surely, 2^242419913 is an apocalyptic number.

It is an amenable number.

242419913 is a deficient number, since it is larger than the sum of its proper divisors (1).

242419913 is an equidigital number, since it uses as much as digits as its factorization.

242419913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 242419913 is about 15569.8398514564. The cubic root of 242419913 is about 623.5281958822.

The spelling of 242419913 in words is "two hundred forty-two million, four hundred nineteen thousand, nine hundred thirteen".