243044015429 has 2 divisors, whose sum is σ = 243044015430. Its totient is φ = 243044015428.

The previous prime is 243044015407. The next prime is 243044015443. The reversal of 243044015429 is 924510440342.

It is a happy number.

243044015429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193444271329 + 49599744100 = 439823^2 + 222710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243044015429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243044015392 and 243044015401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243044015129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121522007714 + 121522007715.

It is an arithmetic number, because the mean of its divisors is an integer number (121522007715).

Almost surely, 2^243044015429 is an apocalyptic number.

It is an amenable number.

243044015429 is a deficient number, since it is larger than the sum of its proper divisors (1).

243044015429 is an equidigital number, since it uses as much as digits as its factorization.

243044015429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 243044015429 in words is "two hundred forty-three billion, forty-four million, fifteen thousand, four hundred twenty-nine".