243413223 has 4 divisors (see below), whose sum is σ = 324550968. Its totient is φ = 162275480.

The previous prime is 243413221. The next prime is 243413231. The reversal of 243413223 is 322314342.

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

It is a cyclic number.

It is not a de Polignac number, because 243413223 - 2¹ = 243413221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243413193 and 243413202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243413221) 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 in 3 ways as a sum of consecutive naturals, for example, 40568868 + ... + 40568873.

It is an arithmetic number, because the mean of its divisors is an integer number (81137742).

Almost surely, 2^243413223 is an apocalyptic number.

243413223 is a deficient number, since it is larger than the sum of its proper divisors (81137745).

243413223 is an equidigital number, since it uses as much as digits as its factorization.

243413223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81137744.

The product of its digits is 3456, while the sum is 24.

The square root of 243413223 is about 15601.7057721263. The cubic root of 243413223 is about 624.3786661421.

Adding to 243413223 its reverse (322314342), we get a palindrome (565727565).

The spelling of 243413223 in words is "two hundred forty-three million, four hundred thirteen thousand, two hundred twenty-three".