243043429 has 2 divisors, whose sum is σ = 243043430. Its totient is φ = 243043428.

The previous prime is 243043399. The next prime is 243043433. The reversal of 243043429 is 924340342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169598529 + 73444900 = 13023^2 + 8570^2 .

It is a cyclic number.

It is not a de Polignac number, because 243043429 - 2⁵ = 243043397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243043429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243043469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121521714 + 121521715.

It is an arithmetic number, because the mean of its divisors is an integer number (121521715).

Almost surely, 2^243043429 is an apocalyptic number.

It is an amenable number.

243043429 is a deficient number, since it is larger than the sum of its proper divisors (1).

243043429 is an equidigital number, since it uses as much as digits as its factorization.

243043429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 243043429 is about 15589.8501917113. The cubic root of 243043429 is about 624.0623199935.

The spelling of 243043429 in words is "two hundred forty-three million, forty-three thousand, four hundred twenty-nine".