242207569 has 2 divisors, whose sum is σ = 242207570. Its totient is φ = 242207568.

The previous prime is 242207527. The next prime is 242207579. The reversal of 242207569 is 965702242.

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., 174556944 + 67650625 = 13212^2 + 8225^2 .

It is a cyclic number.

It is not a de Polignac number, because 242207569 - 2²¹ = 240110417 is a prime.

It is a super-2 number, since 2×242207569² = 117329012961779522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242207579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121103784 + 121103785.

It is an arithmetic number, because the mean of its divisors is an integer number (121103785).

Almost surely, 2^242207569 is an apocalyptic number.

It is an amenable number.

242207569 is a deficient number, since it is larger than the sum of its proper divisors (1).

242207569 is an equidigital number, since it uses as much as digits as its factorization.

242207569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 242207569 is about 15563.0192764772. The cubic root of 242207569 is about 623.3460860505.

The spelling of 242207569 in words is "two hundred forty-two million, two hundred seven thousand, five hundred sixty-nine".