243413069 has 2 divisors, whose sum is σ = 243413070. Its totient is φ = 243413068.

The previous prime is 243413039. The next prime is 243413081. The reversal of 243413069 is 960314342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159012100 + 84400969 = 12610^2 + 9187^2 .

It is a cyclic number.

It is not a de Polignac number, because 243413069 - 2¹² = 243408973 is a prime.

It is a super-2 number, since 2×243413069² = 118499844319997522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243413029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121706534 + 121706535.

It is an arithmetic number, because the mean of its divisors is an integer number (121706535).

Almost surely, 2^243413069 is an apocalyptic number.

It is an amenable number.

243413069 is a deficient number, since it is larger than the sum of its proper divisors (1).

243413069 is an equidigital number, since it uses as much as digits as its factorization.

243413069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 243413069 is about 15601.7008367678. The cubic root of 243413069 is about 624.3785344671.

The spelling of 243413069 in words is "two hundred forty-three million, four hundred thirteen thousand, sixty-nine".