222143423 has 8 divisors (see below), whose sum is σ = 224550816. Its totient is φ = 219744000.

The previous prime is 222143401. The next prime is 222143429. The reversal of 222143423 is 324341222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222143423 - 2⁶ = 222143359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222143429) 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 7 ways as a sum of consecutive naturals, for example, 66278 + ... + 69548.

It is an arithmetic number, because the mean of its divisors is an integer number (28068852).

Almost surely, 2^222143423 is an apocalyptic number.

222143423 is a deficient number, since it is larger than the sum of its proper divisors (2407393).

222143423 is a wasteful number, since it uses less digits than its factorization.

222143423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985.

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

The square root of 222143423 is about 14904.4766093949. The cubic root of 222143423 is about 605.6352619687.

Adding to 222143423 its reverse (324341222), we get a palindrome (546484645).

The spelling of 222143423 in words is "two hundred twenty-two million, one hundred forty-three thousand, four hundred twenty-three".