224851 has 4 divisors (see below), whose sum is σ = 245304. Its totient is φ = 204400.

The previous prime is 224831. The next prime is 224863. The reversal of 224851 is 158422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224851 is a prime.

It is a Duffinian number.

224851 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (224831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10210 + ... + 10231.

It is an arithmetic number, because the mean of its divisors is an integer number (61326).

2²²⁴⁸⁵¹ is an apocalyptic number.

224851 is a deficient number, since it is larger than the sum of its proper divisors (20453).

224851 is a wasteful number, since it uses less digits than its factorization.

224851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20452.

The product of its digits is 640, while the sum is 22.

The square root of 224851 is about 474.1845632241. The cubic root of 224851 is about 60.8085910933.

The spelling of 224851 in words is "two hundred twenty-four thousand, eight hundred fifty-one".