224002143 has 24 divisors (see below), whose sum is σ = 330810480. Its totient is φ = 146025600.

The previous prime is 224002139. The next prime is 224002157. The reversal of 224002143 is 341200422.

It is not a de Polignac number, because 224002143 - 2² = 224002139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224002133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73963 + ... + 76931.

It is an arithmetic number, because the mean of its divisors is an integer number (13783770).

Almost surely, 2^224002143 is an apocalyptic number.

224002143 is a deficient number, since it is larger than the sum of its proper divisors (106808337).

224002143 is a wasteful number, since it uses less digits than its factorization.

224002143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159 (or 3156 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 224002143 is about 14966.7011395297. The cubic root of 224002143 is about 607.3197310982.

Adding to 224002143 its reverse (341200422), we get a palindrome (565202565).

The spelling of 224002143 in words is "two hundred twenty-four million, two thousand, one hundred forty-three".