223682281 has 2 divisors, whose sum is σ = 223682282. Its totient is φ = 223682280.

The previous prime is 223682273. The next prime is 223682297. The reversal of 223682281 is 182286322.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212693056 + 10989225 = 14584^2 + 3315^2 .

It is a cyclic number.

It is not a de Polignac number, because 223682281 - 2³ = 223682273 is a prime.

It is a super-2 number, since 2×223682281² = 100067525666725922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (223682681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111841140 + 111841141.

It is an arithmetic number, because the mean of its divisors is an integer number (111841141).

Almost surely, 2^223682281 is an apocalyptic number.

It is an amenable number.

223682281 is a deficient number, since it is larger than the sum of its proper divisors (1).

223682281 is an equidigital number, since it uses as much as digits as its factorization.

223682281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 34.

The square root of 223682281 is about 14956.0115338281. The cubic root of 223682281 is about 607.0305210071.

It can be divided in two parts, 22368 and 2281, that added together give a square (24649 = 157²).

The spelling of 223682281 in words is "two hundred twenty-three million, six hundred eighty-two thousand, two hundred eighty-one".