242905241 has 2 divisors, whose sum is σ = 242905242. Its totient is φ = 242905240.

The previous prime is 242905207. The next prime is 242905249. The reversal of 242905241 is 142509242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143304841 + 99600400 = 11971^2 + 9980^2 .

It is a cyclic number.

It is not a de Polignac number, because 242905241 - 2¹⁰ = 242904217 is a prime.

It is a super-2 number, since 2×242905241² = 118005912210536162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (242905249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121452620 + 121452621.

It is an arithmetic number, because the mean of its divisors is an integer number (121452621).

Almost surely, 2^242905241 is an apocalyptic number.

It is an amenable number.

242905241 is a deficient number, since it is larger than the sum of its proper divisors (1).

242905241 is an equidigital number, since it uses as much as digits as its factorization.

242905241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 242905241 is about 15585.4175754132. The cubic root of 242905241 is about 623.9440225166.

The spelling of 242905241 in words is "two hundred forty-two million, nine hundred five thousand, two hundred forty-one".