243915341 has 2 divisors, whose sum is σ = 243915342. Its totient is φ = 243915340.

The previous prime is 243915323. The next prime is 243915361. The reversal of 243915341 is 143519342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236236900 + 7678441 = 15370^2 + 2771^2 .

It is a cyclic number.

It is not a de Polignac number, because 243915341 - 2⁶ = 243915277 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 243915298 and 243915307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243915361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121957670 + 121957671.

It is an arithmetic number, because the mean of its divisors is an integer number (121957671).

Almost surely, 2^243915341 is an apocalyptic number.

It is an amenable number.

243915341 is a deficient number, since it is larger than the sum of its proper divisors (1).

243915341 is an equidigital number, since it uses as much as digits as its factorization.

243915341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 243915341 is about 15617.7892481619. The cubic root of 243915341 is about 624.8076984916.

The spelling of 243915341 in words is "two hundred forty-three million, nine hundred fifteen thousand, three hundred forty-one".