223009529 has 2 divisors, whose sum is σ = 223009530. Its totient is φ = 223009528.

The previous prime is 223009513. The next prime is 223009543. The reversal of 223009529 is 925900322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222695929 + 313600 = 14923^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 223009529 - 2⁴ = 223009513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223009495 and 223009504.

It is not a weakly prime, because it can be changed into another prime (223000529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111504764 + 111504765.

It is an arithmetic number, because the mean of its divisors is an integer number (111504765).

Almost surely, 2^223009529 is an apocalyptic number.

It is an amenable number.

223009529 is a deficient number, since it is larger than the sum of its proper divisors (1).

223009529 is an equidigital number, since it uses as much as digits as its factorization.

223009529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 223009529 is about 14933.5035741784. The cubic root of 223009529 is about 606.4213368562.

The spelling of 223009529 in words is "two hundred twenty-three million, nine thousand, five hundred twenty-nine".