223440143 has 2 divisors, whose sum is σ = 223440144. Its totient is φ = 223440142.

The previous prime is 223440131. The next prime is 223440167. The reversal of 223440143 is 341044322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223440143 - 2¹² = 223436047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223440043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111720071 + 111720072.

It is an arithmetic number, because the mean of its divisors is an integer number (111720072).

Almost surely, 2^223440143 is an apocalyptic number.

223440143 is a deficient number, since it is larger than the sum of its proper divisors (1).

223440143 is an equidigital number, since it uses as much as digits as its factorization.

223440143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 223440143 is about 14947.9143361206. The cubic root of 223440143 is about 606.8114033295.

Adding to 223440143 its reverse (341044322), we get a palindrome (564484465).

The spelling of 223440143 in words is "two hundred twenty-three million, four hundred forty thousand, one hundred forty-three".