223542289 has 2 divisors, whose sum is σ = 223542290. Its totient is φ = 223542288.

The previous prime is 223542281. The next prime is 223542311. The reversal of 223542289 is 982245322.

223542289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120824064 + 102718225 = 10992^2 + 10135^2 .

It is a cyclic number.

It is not a de Polignac number, because 223542289 - 2³ = 223542281 is a prime.

It is not a weakly prime, because it can be changed into another prime (223542281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111771144 + 111771145.

It is an arithmetic number, because the mean of its divisors is an integer number (111771145).

Almost surely, 2^223542289 is an apocalyptic number.

It is an amenable number.

223542289 is a deficient number, since it is larger than the sum of its proper divisors (1).

223542289 is an equidigital number, since it uses as much as digits as its factorization.

223542289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 223542289 is about 14951.3306765652. The cubic root of 223542289 is about 606.9038574933.

The spelling of 223542289 in words is "two hundred twenty-three million, five hundred forty-two thousand, two hundred eighty-nine".