243702941 has 2 divisors, whose sum is σ = 243702942. Its totient is φ = 243702940.

The previous prime is 243702929. The next prime is 243702959. The reversal of 243702941 is 149207342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188512900 + 55190041 = 13730^2 + 7429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243702941 is a prime.

It is a super-2 number, since 2×243702941² = 118782246904098962, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243702898 and 243702907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243702961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121851470 + 121851471.

It is an arithmetic number, because the mean of its divisors is an integer number (121851471).

Almost surely, 2^243702941 is an apocalyptic number.

It is an amenable number.

243702941 is a deficient number, since it is larger than the sum of its proper divisors (1).

243702941 is an equidigital number, since it uses as much as digits as its factorization.

243702941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 243702941 is about 15610.9878290901. The cubic root of 243702941 is about 624.6262862387.

The spelling of 243702941 in words is "two hundred forty-three million, seven hundred two thousand, nine hundred forty-one".