519793139 has 16 divisors (see below), whose sum is σ = 561901536. Its totient is φ = 479040000.

The previous prime is 519793133. The next prime is 519793147. The reversal of 519793139 is 931397915.

It is a cyclic number.

It is not a de Polignac number, because 519793139 - 2¹² = 519789043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 519793093 and 519793102.

It is not an unprimeable number, because it can be changed into a prime (519793133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259289 + ... + 261285.

It is an arithmetic number, because the mean of its divisors is an integer number (35118846).

Almost surely, 2^519793139 is an apocalyptic number.

519793139 is a deficient number, since it is larger than the sum of its proper divisors (42108397).

519793139 is a wasteful number, since it uses less digits than its factorization.

519793139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326.

The product of its digits is 229635, while the sum is 47.

The square root of 519793139 is about 22798.9723233307. The cubic root of 519793139 is about 804.0385053504.

The spelling of 519793139 in words is "five hundred nineteen million, seven hundred ninety-three thousand, one hundred thirty-nine".