223081 has 4 divisors (see below), whose sum is σ = 228564. Its totient is φ = 217600.

The previous prime is 223063. The next prime is 223087. The reversal of 223081 is 180322.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 75625 + 147456 = 275^2 + 384^2 .

It is a cyclic number.

It is not a de Polignac number, because 223081 - 2⁵ = 223049 is a prime.

It is a super-3 number, since 3×223081³ = 33304966610521323, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223087) 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, 2680 + ... + 2761.

It is an arithmetic number, because the mean of its divisors is an integer number (57141).

2²²³⁰⁸¹ is an apocalyptic number.

It is an amenable number.

223081 is a deficient number, since it is larger than the sum of its proper divisors (5483).

223081 is an equidigital number, since it uses as much as digits as its factorization.

223081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 223081 is about 472.3145138570. The cubic root of 223081 is about 60.6486112728.

The spelling of 223081 in words is "two hundred twenty-three thousand, eighty-one".