224545143 has 4 divisors (see below), whose sum is σ = 299393528. Its totient is φ = 149696760.

The previous prime is 224545117. The next prime is 224545147. The reversal of 224545143 is 341545422.

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

It is not a de Polignac number, because 224545143 - 2¹⁰ = 224544119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 224545143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224545147) 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, 37424188 + ... + 37424193.

It is an arithmetic number, because the mean of its divisors is an integer number (74848382).

Almost surely, 2^224545143 is an apocalyptic number.

224545143 is a deficient number, since it is larger than the sum of its proper divisors (74848385).

224545143 is an equidigital number, since it uses as much as digits as its factorization.

224545143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74848384.

The product of its digits is 19200, while the sum is 30.

The square root of 224545143 is about 14984.8304294710. The cubic root of 224545143 is about 607.8100664446.

The spelling of 224545143 in words is "two hundred twenty-four million, five hundred forty-five thousand, one hundred forty-three".