242307539 has 2 divisors, whose sum is σ = 242307540. Its totient is φ = 242307538.

The previous prime is 242307529. The next prime is 242307587. The reversal of 242307539 is 935703242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242307539 - 2⁸ = 242307283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242307499 and 242307508.

It is not a weakly prime, because it can be changed into another prime (242307529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121153769 + 121153770.

It is an arithmetic number, because the mean of its divisors is an integer number (121153770).

Almost surely, 2^242307539 is an apocalyptic number.

242307539 is a deficient number, since it is larger than the sum of its proper divisors (1).

242307539 is an equidigital number, since it uses as much as digits as its factorization.

242307539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 242307539 is about 15566.2307255161. The cubic root of 242307539 is about 623.4318352791.

The spelling of 242307539 in words is "two hundred forty-two million, three hundred seven thousand, five hundred thirty-nine".