243140302459 has 2 divisors, whose sum is σ = 243140302460. Its totient is φ = 243140302458.

The previous prime is 243140302441. The next prime is 243140302487. The reversal of 243140302459 is 954203041342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243140302459 - 2⁷ = 243140302331 is a prime.

It is not a weakly prime, because it can be changed into another prime (243140302159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121570151229 + 121570151230.

It is an arithmetic number, because the mean of its divisors is an integer number (121570151230).

Almost surely, 2^243140302459 is an apocalyptic number.

243140302459 is a deficient number, since it is larger than the sum of its proper divisors (1).

243140302459 is an equidigital number, since it uses as much as digits as its factorization.

243140302459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 243140302459 in words is "two hundred forty-three billion, one hundred forty million, three hundred two thousand, four hundred fifty-nine".