242564099 has 2 divisors, whose sum is σ = 242564100. Its totient is φ = 242564098.

The previous prime is 242564087. The next prime is 242564167. The reversal of 242564099 is 990465242.

It is a happy number.

242564099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242564099 - 2²⁰ = 241515523 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (242564009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121282049 + 121282050.

It is an arithmetic number, because the mean of its divisors is an integer number (121282050).

Almost surely, 2^242564099 is an apocalyptic number.

242564099 is a deficient number, since it is larger than the sum of its proper divisors (1).

242564099 is an equidigital number, since it uses as much as digits as its factorization.

242564099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 242564099 is about 15574.4694612690. The cubic root of 242564099 is about 623.6517916393.

The spelling of 242564099 in words is "two hundred forty-two million, five hundred sixty-four thousand, ninety-nine".