223163489 has 2 divisors, whose sum is σ = 223163490. Its totient is φ = 223163488.

The previous prime is 223163461. The next prime is 223163491. The reversal of 223163489 is 984361322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216325264 + 6838225 = 14708^2 + 2615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223163489 is a prime.

It is a super-3 number, since 3×223163489³ (a number of 26 digits) contains 333 as substring.

Together with 223163491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223163989) 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, 111581744 + 111581745.

It is an arithmetic number, because the mean of its divisors is an integer number (111581745).

Almost surely, 2^223163489 is an apocalyptic number.

It is an amenable number.

223163489 is a deficient number, since it is larger than the sum of its proper divisors (1).

223163489 is an equidigital number, since it uses as much as digits as its factorization.

223163489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 223163489 is about 14938.6575367400. The cubic root of 223163489 is about 606.5608572797.

The spelling of 223163489 in words is "two hundred twenty-three million, one hundred sixty-three thousand, four hundred eighty-nine".