242440123403459 has 2 divisors, whose sum is σ = 242440123403460. Its totient is φ = 242440123403458.

The previous prime is 242440123403267. The next prime is 242440123403551. The reversal of 242440123403459 is 954304321044242.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242440123403459 is a prime.

It is not a weakly prime, because it can be changed into another prime (242440123403759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121220061701729 + 121220061701730.

It is an arithmetic number, because the mean of its divisors is an integer number (121220061701730).

Almost surely, 2^{242440123403459} is an apocalyptic number.

242440123403459 is a deficient number, since it is larger than the sum of its proper divisors (1).

242440123403459 is an equidigital number, since it uses as much as digits as its factorization.

242440123403459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 242440123403459 in words is "two hundred forty-two trillion, four hundred forty billion, one hundred twenty-three million, four hundred three thousand, four hundred fifty-nine".