517039138 has 32 divisors (see below), whose sum is σ = 989429760. Its totient is φ = 196756560.

The previous prime is 517039129. The next prime is 517039163. The reversal of 517039138 is 831930715.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 517039097 and 517039106.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 32418 + ... + 45661.

It is an arithmetic number, because the mean of its divisors is an integer number (30919680).

Almost surely, 2^517039138 is an apocalyptic number.

517039138 is a deficient number, since it is larger than the sum of its proper divisors (472390622).

517039138 is a wasteful number, since it uses less digits than its factorization.

517039138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78142.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 517039138 is about 22738.4946291526. The cubic root of 517039138 is about 802.6159874795.

The spelling of 517039138 in words is "five hundred seventeen million, thirty-nine thousand, one hundred thirty-eight".