224646143 has 4 divisors (see below), whose sum is σ = 237860640. Its totient is φ = 211431648.

The previous prime is 224646133. The next prime is 224646157. The reversal of 224646143 is 341646422.

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

It is a cyclic number.

It is not a de Polignac number, because 224646143 - 2⁴ = 224646127 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 (224646133) 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, 6607223 + ... + 6607256.

It is an arithmetic number, because the mean of its divisors is an integer number (59465160).

Almost surely, 2^224646143 is an apocalyptic number.

224646143 is a deficient number, since it is larger than the sum of its proper divisors (13214497).

224646143 is a wasteful number, since it uses less digits than its factorization.

224646143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13214496.

The product of its digits is 27648, while the sum is 32.

The square root of 224646143 is about 14988.2001254320. The cubic root of 224646143 is about 607.9011834081.

The spelling of 224646143 in words is "two hundred twenty-four million, six hundred forty-six thousand, one hundred forty-three".