517892139 has 12 divisors (see below), whose sum is σ = 787438600. Its totient is φ = 327089664.

The previous prime is 517892119. The next prime is 517892153. The reversal of 517892139 is 931298715.

517892139 is a `hidden beast` number, since 517 + 89 + 21 + 39 = 666.

It is not a de Polignac number, because 517892139 - 2¹⁷ = 517761067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 517892094 and 517892103.

It is not an unprimeable number, because it can be changed into a prime (517892119) 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 11 ways as a sum of consecutive naturals, for example, 1514134 + ... + 1514475.

Almost surely, 2^517892139 is an apocalyptic number.

517892139 is a deficient number, since it is larger than the sum of its proper divisors (269546461).

517892139 is a wasteful number, since it uses less digits than its factorization.

517892139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028634 (or 3028631 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 517892139 is about 22757.2436599866. The cubic root of 517892139 is about 803.0571249981.

The spelling of 517892139 in words is "five hundred seventeen million, eight hundred ninety-two thousand, one hundred thirty-nine".