243115155163 has 2 divisors, whose sum is σ = 243115155164. Its totient is φ = 243115155162.

The previous prime is 243115155011. The next prime is 243115155229. The reversal of 243115155163 is 361551511342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243115155163 is a prime.

It is not a weakly prime, because it can be changed into another prime (243115155463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121557577581 + 121557577582.

It is an arithmetic number, because the mean of its divisors is an integer number (121557577582).

Almost surely, 2^243115155163 is an apocalyptic number.

243115155163 is a deficient number, since it is larger than the sum of its proper divisors (1).

243115155163 is an equidigital number, since it uses as much as digits as its factorization.

243115155163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 37.

It can be divided in two parts, 243115 and 155163, that added together give a triangular number (398278 = T₈₉₂).

The spelling of 243115155163 in words is "two hundred forty-three billion, one hundred fifteen million, one hundred fifty-five thousand, one hundred sixty-three".