243422299 has 2 divisors, whose sum is σ = 243422300. Its totient is φ = 243422298.

The previous prime is 243422273. The next prime is 243422321. The reversal of 243422299 is 992224342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243422299 - 2⁷ = 243422171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (243422899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121711149 + 121711150.

It is an arithmetic number, because the mean of its divisors is an integer number (121711150).

Almost surely, 2^243422299 is an apocalyptic number.

243422299 is a deficient number, since it is larger than the sum of its proper divisors (1).

243422299 is an equidigital number, since it uses as much as digits as its factorization.

243422299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The square root of 243422299 is about 15601.9966350464. The cubic root of 243422299 is about 624.3864263209.

It can be divided in two parts, 2434222 and 99, that added together give a triangular number (2434321 = T₂₂₀₆).

The spelling of 243422299 in words is "two hundred forty-three million, four hundred twenty-two thousand, two hundred ninety-nine".