243144299 has 2 divisors, whose sum is σ = 243144300. Its totient is φ = 243144298.

The previous prime is 243144281. The next prime is 243144313. The reversal of 243144299 is 992441342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243144299 - 2⁸ = 243144043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (243144199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121572149 + 121572150.

It is an arithmetic number, because the mean of its divisors is an integer number (121572150).

Almost surely, 2^243144299 is an apocalyptic number.

243144299 is a deficient number, since it is larger than the sum of its proper divisors (1).

243144299 is an equidigital number, since it uses as much as digits as its factorization.

243144299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 243144299 is about 15593.0849737953. The cubic root of 243144299 is about 624.1486426449.

The spelling of 243144299 in words is "two hundred forty-three million, one hundred forty-four thousand, two hundred ninety-nine".