519103939 has 6 divisors (see below), whose sum is σ = 524520204. Its totient is φ = 513743040.

The previous prime is 519103913. The next prime is 519103957. The reversal of 519103939 is 939301915.

It is not a de Polignac number, because 519103939 - 2¹⁹ = 518579651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (519103999) 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 in 5 ways as a sum of consecutive naturals, for example, 18177 + ... + 36994.

It is an arithmetic number, because the mean of its divisors is an integer number (87420034).

Almost surely, 2^519103939 is an apocalyptic number.

519103939 is a deficient number, since it is larger than the sum of its proper divisors (5416265).

519103939 is an frugal number, since it uses more digits than its factorization.

519103939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55365 (or 55268 counting only the distinct ones).

The product of its (nonzero) digits is 32805, while the sum is 40.

The square root of 519103939 is about 22783.8525934487. The cubic root of 519103939 is about 803.6829867207.

The spelling of 519103939 in words is "five hundred nineteen million, one hundred three thousand, nine hundred thirty-nine".