529012009 has 2 divisors, whose sum is σ = 529012010. Its totient is φ = 529012008.

The previous prime is 529012007. The next prime is 529012013. The reversal of 529012009 is 900210925.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300155625 + 228856384 = 17325^2 + 15128^2 .

It is a cyclic number.

It is not a de Polignac number, because 529012009 - 2¹ = 529012007 is a prime.

Together with 529012007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (529012007) 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, 264506004 + 264506005.

It is an arithmetic number, because the mean of its divisors is an integer number (264506005).

Almost surely, 2^529012009 is an apocalyptic number.

It is an amenable number.

529012009 is a deficient number, since it is larger than the sum of its proper divisors (1).

529012009 is an equidigital number, since it uses as much as digits as its factorization.

529012009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 529012009 is about 23000.2610637358. The cubic root of 529012009 is about 808.7640598212.

The spelling of 529012009 in words is "five hundred twenty-nine million, twelve thousand, nine".