243330601 has 2 divisors, whose sum is σ = 243330602. Its totient is φ = 243330600.

The previous prime is 243330569. The next prime is 243330623. The reversal of 243330601 is 106033342.

It is an a-pointer prime, because the next prime (243330623) can be obtained adding 243330601 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229492201 + 13838400 = 15149^2 + 3720^2 .

It is a cyclic number.

It is not a de Polignac number, because 243330601 - 2⁵ = 243330569 is a prime.

It is not a weakly prime, because it can be changed into another prime (243330641) 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, 121665300 + 121665301.

It is an arithmetic number, because the mean of its divisors is an integer number (121665301).

Almost surely, 2^243330601 is an apocalyptic number.

It is an amenable number.

243330601 is a deficient number, since it is larger than the sum of its proper divisors (1).

243330601 is an equidigital number, since it uses as much as digits as its factorization.

243330601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 243330601 is about 15599.0576958995. The cubic root of 243330601 is about 624.3080136506.

Adding to 243330601 its reverse (106033342), we get a palindrome (349363943).

It can be divided in two parts, 24 and 3330601, that added together give a square (3330625 = 1825²).

The spelling of 243330601 in words is "two hundred forty-three million, three hundred thirty thousand, six hundred one".