243214447841 has 4 divisors (see below), whose sum is σ = 243936152772. Its totient is φ = 242492742912.

The previous prime is 243214447799. The next prime is 243214447873. The reversal of 243214447841 is 148744412342.

243214447841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28525858816 + 214688589025 = 168896^2 + 463345^2 .

It is a cyclic number.

It is not a de Polignac number, because 243214447841 - 2¹⁰ = 243214446817 is a prime.

It is a super-2 number, since 2×243214447841² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243214447792 and 243214447801.

It is not an unprimeable number, because it can be changed into a prime (243214443841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360851960 + ... + 360852633.

It is an arithmetic number, because the mean of its divisors is an integer number (60984038193).

Almost surely, 2^243214447841 is an apocalyptic number.

It is an amenable number.

243214447841 is a deficient number, since it is larger than the sum of its proper divisors (721704931).

243214447841 is an equidigital number, since it uses as much as digits as its factorization.

243214447841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721704930.

The product of its digits is 688128, while the sum is 44.

The spelling of 243214447841 in words is "two hundred forty-three billion, two hundred fourteen million, four hundred forty-seven thousand, eight hundred forty-one".