243392029 has 2 divisors, whose sum is σ = 243392030. Its totient is φ = 243392028.

The previous prime is 243392027. The next prime is 243392053. The reversal of 243392029 is 920293342.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240312004 + 3080025 = 15502^2 + 1755^2 .

It is a cyclic number.

It is not a de Polignac number, because 243392029 - 2¹ = 243392027 is a prime.

Together with 243392027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 243391985 and 243392003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243392027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121696014 + 121696015.

It is an arithmetic number, because the mean of its divisors is an integer number (121696015).

Almost surely, 2^243392029 is an apocalyptic number.

It is an amenable number.

243392029 is a deficient number, since it is larger than the sum of its proper divisors (1).

243392029 is an equidigital number, since it uses as much as digits as its factorization.

243392029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 243392029 is about 15601.0265367379. The cubic root of 243392029 is about 624.3605440569.

The spelling of 243392029 in words is "two hundred forty-three million, three hundred ninety-two thousand, twenty-nine".