243362201 has 2 divisors, whose sum is σ = 243362202. Its totient is φ = 243362200.

The previous prime is 243362159. The next prime is 243362213. The reversal of 243362201 is 102263342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234120601 + 9241600 = 15301^2 + 3040^2 .

It is a cyclic number.

It is not a de Polignac number, because 243362201 - 2⁶ = 243362137 is a prime.

It is not a weakly prime, because it can be changed into another prime (243362221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121681100 + 121681101.

It is an arithmetic number, because the mean of its divisors is an integer number (121681101).

Almost surely, 2^243362201 is an apocalyptic number.

It is an amenable number.

243362201 is a deficient number, since it is larger than the sum of its proper divisors (1).

243362201 is an equidigital number, since it uses as much as digits as its factorization.

243362201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 243362201 is about 15600.0705447123. The cubic root of 243362201 is about 624.3350376243.

The spelling of 243362201 in words is "two hundred forty-three million, three hundred sixty-two thousand, two hundred one".