243004469 has 2 divisors, whose sum is σ = 243004470. Its totient is φ = 243004468.

The previous prime is 243004457. The next prime is 243004507. The reversal of 243004469 is 964400342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241429444 + 1575025 = 15538^2 + 1255^2 .

It is a cyclic number.

It is not a de Polignac number, because 243004469 - 2¹⁶ = 242938933 is a prime.

It is a super-2 number, since 2×243004469² = 118102343907943922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243004439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121502234 + 121502235.

It is an arithmetic number, because the mean of its divisors is an integer number (121502235).

Almost surely, 2^243004469 is an apocalyptic number.

It is an amenable number.

243004469 is a deficient number, since it is larger than the sum of its proper divisors (1).

243004469 is an equidigital number, since it uses as much as digits as its factorization.

243004469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 243004469 is about 15588.6006107027. The cubic root of 243004469 is about 624.0289723632.

The spelling of 243004469 in words is "two hundred forty-three million, four thousand, four hundred sixty-nine".