223244143 has 4 divisors (see below), whose sum is σ = 224377560. Its totient is φ = 222110728.

The previous prime is 223244137. The next prime is 223244149. The reversal of 223244143 is 341442322.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (223244137) and next prime (223244149).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223244143 is a prime.

It is a super-3 number, since 3×223244143³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223244149) 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, 566413 + ... + 566806.

It is an arithmetic number, because the mean of its divisors is an integer number (56094390).

Almost surely, 2^223244143 is an apocalyptic number.

223244143 is a deficient number, since it is larger than the sum of its proper divisors (1133417).

223244143 is a wasteful number, since it uses less digits than its factorization.

223244143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133416.

The product of its digits is 4608, while the sum is 25.

The square root of 223244143 is about 14941.3567991665. The cubic root of 223244143 is about 606.6339213028.

Adding to 223244143 its reverse (341442322), we get a palindrome (564686465).

The spelling of 223244143 in words is "two hundred twenty-three million, two hundred forty-four thousand, one hundred forty-three".