563121329 has 2 divisors, whose sum is σ = 563121330. Its totient is φ = 563121328.

The previous prime is 563121281. The next prime is 563121371. The reversal of 563121329 is 923121365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 434639104 + 128482225 = 20848^2 + 11335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563121329 is a prime.

It is a super-3 number, since 3×563121329³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 563121295 and 563121304.

It is not a weakly prime, because it can be changed into another prime (563121529) 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 as a sum of consecutive naturals, namely, 281560664 + 281560665.

It is an arithmetic number, because the mean of its divisors is an integer number (281560665).

Almost surely, 2^563121329 is an apocalyptic number.

It is an amenable number.

563121329 is a deficient number, since it is larger than the sum of its proper divisors (1).

563121329 is an equidigital number, since it uses as much as digits as its factorization.

563121329 is an odious number, because the sum of its binary digits is odd.

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

The square root of 563121329 is about 23730.1776015267. The cubic root of 563121329 is about 825.7856386290.

The spelling of 563121329 in words is "five hundred sixty-three million, one hundred twenty-one thousand, three hundred twenty-nine".