224831 has 2 divisors, whose sum is σ = 224832. Its totient is φ = 224830.

The previous prime is 224813. The next prime is 224863. The reversal of 224831 is 138422.

Together with previous prime (224813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224831 is a prime.

It is a super-2 number, since 2×224831² = 101097957122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224881) 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 as a sum of consecutive naturals, namely, 112415 + 112416.

It is an arithmetic number, because the mean of its divisors is an integer number (112416).

2²²⁴⁸³¹ is an apocalyptic number.

224831 is a deficient number, since it is larger than the sum of its proper divisors (1).

224831 is an equidigital number, since it uses as much as digits as its factorization.

224831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 20.

The square root of 224831 is about 474.1634739201. The cubic root of 224831 is about 60.8067881098.

The spelling of 224831 in words is "two hundred twenty-four thousand, eight hundred thirty-one".