242308757 has 2 divisors, whose sum is σ = 242308758. Its totient is φ = 242308756.

The previous prime is 242308753. The next prime is 242308799. The reversal of 242308757 is 757803242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239599441 + 2709316 = 15479^2 + 1646^2 .

It is a cyclic number.

It is not a de Polignac number, because 242308757 - 2² = 242308753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242308757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242308751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121154378 + 121154379.

It is an arithmetic number, because the mean of its divisors is an integer number (121154379).

Almost surely, 2^242308757 is an apocalyptic number.

It is an amenable number.

242308757 is a deficient number, since it is larger than the sum of its proper divisors (1).

242308757 is an equidigital number, since it uses as much as digits as its factorization.

242308757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 242308757 is about 15566.2698486182. The cubic root of 242308757 is about 623.4328798727.

The spelling of 242308757 in words is "two hundred forty-two million, three hundred eight thousand, seven hundred fifty-seven".