224021143 has 8 divisors (see below), whose sum is σ = 232206480. Its totient is φ = 215866560.

The previous prime is 224021141. The next prime is 224021177. The reversal of 224021143 is 341120422.

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 224021143 - 2¹ = 224021141 is a prime.

It is a super-2 number, since 2×224021143² = 100370945022052898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 224021143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224021141) 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, 7696 + ... + 22522.

It is an arithmetic number, because the mean of its divisors is an integer number (29025810).

Almost surely, 2^224021143 is an apocalyptic number.

224021143 is a deficient number, since it is larger than the sum of its proper divisors (8185337).

224021143 is a wasteful number, since it uses less digits than its factorization.

224021143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15377.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 224021143 is about 14967.3358684837. The cubic root of 224021143 is about 607.3369016908.

Adding to 224021143 its reverse (341120422), we get a palindrome (565141565).

The spelling of 224021143 in words is "two hundred twenty-four million, twenty-one thousand, one hundred forty-three".