224142321 has 8 divisors (see below), whose sum is σ = 321845440. Its totient is φ = 137933712.

The previous prime is 224142319. The next prime is 224142323. The reversal of 224142321 is 123241422.

It is an interprime number because it is at equal distance from previous prime (224142319) and next prime (224142323).

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

It is not a de Polignac number, because 224142321 - 2¹ = 224142319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224142323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2873581 + ... + 2873658.

It is an arithmetic number, because the mean of its divisors is an integer number (40230680).

Almost surely, 2^224142321 is an apocalyptic number.

It is an amenable number.

224142321 is a deficient number, since it is larger than the sum of its proper divisors (97703119).

224142321 is a wasteful number, since it uses less digits than its factorization.

224142321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5747255.

The product of its digits is 768, while the sum is 21.

The square root of 224142321 is about 14971.3834030126. The cubic root of 224142321 is about 607.4463892808.

Adding to 224142321 its reverse (123241422), we get a palindrome (347383743).

The spelling of 224142321 in words is "two hundred twenty-four million, one hundred forty-two thousand, three hundred twenty-one".