519047939 has 2 divisors, whose sum is σ = 519047940. Its totient is φ = 519047938.

The previous prime is 519047897. The next prime is 519047959. The reversal of 519047939 is 939740915.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-519047939 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 519047893 and 519047902.

It is not a weakly prime, because it can be changed into another prime (519047959) 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, 259523969 + 259523970.

It is an arithmetic number, because the mean of its divisors is an integer number (259523970).

Almost surely, 2^519047939 is an apocalyptic number.

519047939 is a deficient number, since it is larger than the sum of its proper divisors (1).

519047939 is an equidigital number, since it uses as much as digits as its factorization.

519047939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 519047939 is about 22782.6236197678. The cubic root of 519047939 is about 803.6540857226.

The spelling of 519047939 in words is "five hundred nineteen million, forty-seven thousand, nine hundred thirty-nine".