223142443 has 4 divisors (see below), whose sum is σ = 230837040. Its totient is φ = 215447848.

The previous prime is 223142419. The next prime is 223142467. The reversal of 223142443 is 344241322.

It is a happy number.

223142443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (223142419) and next prime (223142467).

It is a cyclic number.

It is not a de Polignac number, because 223142443 - 2²¹ = 221045291 is a prime.

It is a super-3 number, since 3×223142443³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223142473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3847255 + ... + 3847312.

It is an arithmetic number, because the mean of its divisors is an integer number (57709260).

Almost surely, 2^223142443 is an apocalyptic number.

223142443 is a deficient number, since it is larger than the sum of its proper divisors (7694597).

223142443 is an equidigital number, since it uses as much as digits as its factorization.

223142443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7694596.

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

The square root of 223142443 is about 14937.9531060986. The cubic root of 223142443 is about 606.5417889258.

Adding to 223142443 its reverse (344241322), we get a palindrome (567383765).

The spelling of 223142443 in words is "two hundred twenty-three million, one hundred forty-two thousand, four hundred forty-three".