223205143 has 6 divisors (see below), whose sum is σ = 259646856. Its totient is φ = 191318652.

The previous prime is 223205113. The next prime is 223205149. The reversal of 223205143 is 341502322.

It is not a de Polignac number, because 223205143 - 2¹³ = 223196951 is a prime.

It is a super-3 number, since 3×223205143³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223205149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2277555 + ... + 2277652.

It is an arithmetic number, because the mean of its divisors is an integer number (43274476).

Almost surely, 2^223205143 is an apocalyptic number.

223205143 is a deficient number, since it is larger than the sum of its proper divisors (36441713).

223205143 is an equidigital number, since it uses as much as digits as its factorization.

223205143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555221 (or 4555214 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 223205143 is about 14940.0516398037. The cubic root of 223205143 is about 606.5985936111.

Adding to 223205143 its reverse (341502322), we get a palindrome (564707465).

The spelling of 223205143 in words is "two hundred twenty-three million, two hundred five thousand, one hundred forty-three".