223841 has 2 divisors, whose sum is σ = 223842. Its totient is φ = 223840.

The previous prime is 223837. The next prime is 223843. The reversal of 223841 is 148322.

223841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115600 + 108241 = 340^2 + 329^2 .

It is a cyclic number.

It is not a de Polignac number, because 223841 - 2² = 223837 is a prime.

It is a Sophie Germain prime.

Together with 223843, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (223843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111920 + 111921.

It is an arithmetic number, because the mean of its divisors is an integer number (111921).

2²²³⁸⁴¹ is an apocalyptic number.

It is an amenable number.

223841 is a deficient number, since it is larger than the sum of its proper divisors (1).

223841 is an equidigital number, since it uses as much as digits as its factorization.

223841 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 223841 is about 473.1183784213. The cubic root of 223841 is about 60.7174064634.

The spelling of 223841 in words is "two hundred twenty-three thousand, eight hundred forty-one".