519921029 has 2 divisors, whose sum is σ = 519921030. Its totient is φ = 519921028.

The previous prime is 519921011. The next prime is 519921071. The reversal of 519921029 is 920129915.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 519748804 + 172225 = 22798^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 519921029 - 2¹⁶ = 519855493 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 519920983 and 519921001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (519921329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259960514 + 259960515.

It is an arithmetic number, because the mean of its divisors is an integer number (259960515).

Almost surely, 2^519921029 is an apocalyptic number.

It is an amenable number.

519921029 is a deficient number, since it is larger than the sum of its proper divisors (1).

519921029 is an equidigital number, since it uses as much as digits as its factorization.

519921029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 519921029 is about 22801.7768825151. The cubic root of 519921029 is about 804.1044418705.

The spelling of 519921029 in words is "five hundred nineteen million, nine hundred twenty-one thousand, twenty-nine".