243325469 has 2 divisors, whose sum is σ = 243325470. Its totient is φ = 243325468.

The previous prime is 243325393. The next prime is 243325501. The reversal of 243325469 is 964523342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219928900 + 23396569 = 14830^2 + 4837^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243325469 is a prime.

It is a super-2 number, since 2×243325469² = 118414567728139922, 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 (243325669) 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, 121662734 + 121662735.

It is an arithmetic number, because the mean of its divisors is an integer number (121662735).

Almost surely, 2^243325469 is an apocalyptic number.

It is an amenable number.

243325469 is a deficient number, since it is larger than the sum of its proper divisors (1).

243325469 is an equidigital number, since it uses as much as digits as its factorization.

243325469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 38.

The square root of 243325469 is about 15598.8931979163. The cubic root of 243325469 is about 624.3036245996.

The spelling of 243325469 in words is "two hundred forty-three million, three hundred twenty-five thousand, four hundred sixty-nine".