222424143 has 4 divisors (see below), whose sum is σ = 296565528. Its totient is φ = 148282760.

The previous prime is 222424087. The next prime is 222424151. The reversal of 222424143 is 341424222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222424143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222424183) 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, 37070688 + ... + 37070693.

It is an arithmetic number, because the mean of its divisors is an integer number (74141382).

Almost surely, 2^222424143 is an apocalyptic number.

222424143 is a deficient number, since it is larger than the sum of its proper divisors (74141385).

222424143 is an equidigital number, since it uses as much as digits as its factorization.

222424143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74141384.

The product of its digits is 3072, while the sum is 24.

The square root of 222424143 is about 14913.8909409986. The cubic root of 222424143 is about 605.8902659414.

Adding to 222424143 its reverse (341424222), we get a palindrome (563848365).

The spelling of 222424143 in words is "two hundred twenty-two million, four hundred twenty-four thousand, one hundred forty-three".