224181 has 24 divisors (see below), whose sum is σ = 365760. Its totient is φ = 135432.

The previous prime is 224177. The next prime is 224197. The reversal of 224181 is 181422.

It is not a de Polignac number, because 224181 - 2² = 224177 is a prime.

It is a super-2 number, since 2×224181² = 100514241522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 224181.

It is not an unprimeable number, because it can be changed into a prime (224101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9736 + ... + 9758.

It is an arithmetic number, because the mean of its divisors is an integer number (15240).

2²²⁴¹⁸¹ is an apocalyptic number.

It is an amenable number.

224181 is a deficient number, since it is larger than the sum of its proper divisors (141579).

224181 is a wasteful number, since it uses less digits than its factorization.

224181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 45 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 224181 is about 473.4775601863. The cubic root of 224181 is about 60.7481328492.

The spelling of 224181 in words is "two hundred twenty-four thousand, one hundred eighty-one".