243341393 has 2 divisors, whose sum is σ = 243341394. Its totient is φ = 243341392.

The previous prime is 243341381. The next prime is 243341431. The reversal of 243341393 is 393143342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200987329 + 42354064 = 14177^2 + 6508^2 .

It is a cyclic number.

It is not a de Polignac number, because 243341393 - 2¹⁴ = 243325009 is a prime.

It is not a weakly prime, because it can be changed into another prime (243341333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121670696 + 121670697.

It is an arithmetic number, because the mean of its divisors is an integer number (121670697).

Almost surely, 2^243341393 is an apocalyptic number.

It is an amenable number.

243341393 is a deficient number, since it is larger than the sum of its proper divisors (1).

243341393 is an equidigital number, since it uses as much as digits as its factorization.

243341393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 32.

The square root of 243341393 is about 15599.4036103949. The cubic root of 243341393 is about 624.3172431138.

The spelling of 243341393 in words is "two hundred forty-three million, three hundred forty-one thousand, three hundred ninety-three".