224891 has 2 divisors, whose sum is σ = 224892. Its totient is φ = 224890.

The previous prime is 224881. The next prime is 224897. The reversal of 224891 is 198422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224891 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 224891.

It is not a weakly prime, because it can be changed into another prime (224897) 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, 112445 + 112446.

It is an arithmetic number, because the mean of its divisors is an integer number (112446).

2²²⁴⁸⁹¹ is an apocalyptic number.

224891 is a deficient number, since it is larger than the sum of its proper divisors (1).

224891 is an equidigital number, since it uses as much as digits as its factorization.

224891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 224891 is about 474.2267390184. The cubic root of 224891 is about 60.8121967394.

It can be divided in two parts, 22 and 4891, that added together give a cube (4913 = 17³).

The spelling of 224891 in words is "two hundred twenty-four thousand, eight hundred ninety-one".