243460254362239 has 2 divisors, whose sum is σ = 243460254362240. Its totient is φ = 243460254362238.

The previous prime is 243460254362201. The next prime is 243460254362267. The reversal of 243460254362239 is 932263452064342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243460254362239 is a prime.

It is a super-2 number, since 2×243460254362239² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243460254362239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243460254362279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121730127181119 + 121730127181120.

It is an arithmetic number, because the mean of its divisors is an integer number (121730127181120).

Almost surely, 2^{243460254362239} is an apocalyptic number.

243460254362239 is a deficient number, since it is larger than the sum of its proper divisors (1).

243460254362239 is an equidigital number, since it uses as much as digits as its factorization.

243460254362239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44789760, while the sum is 55.

The spelling of 243460254362239 in words is "two hundred forty-three trillion, four hundred sixty billion, two hundred fifty-four million, three hundred sixty-two thousand, two hundred thirty-nine".