243403223 has 8 divisors (see below), whose sum is σ = 279948192. Its totient is φ = 207301536.

The previous prime is 243403211. The next prime is 243403241. The reversal of 243403223 is 322304342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243403223 - 2⁴ = 243403207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243406223) 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 7 ways as a sum of consecutive naturals, for example, 109640 + ... + 111837.

It is an arithmetic number, because the mean of its divisors is an integer number (34993524).

Almost surely, 2^243403223 is an apocalyptic number.

243403223 is a deficient number, since it is larger than the sum of its proper divisors (36544969).

243403223 is a wasteful number, since it uses less digits than its factorization.

243403223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221641.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 243403223 is about 15601.3852910567. The cubic root of 243403223 is about 624.3701156998.

Adding to 243403223 its reverse (322304342), we get a palindrome (565707565).

The spelling of 243403223 in words is "two hundred forty-three million, four hundred three thousand, two hundred twenty-three".