517464139 has 8 divisors (see below), whose sum is σ = 566796960. Its totient is φ = 470230656.

The previous prime is 517464137. The next prime is 517464163. The reversal of 517464139 is 931464715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 517464139 - 2¹ = 517464137 is a prime.

It is a super-2 number, since 2×517464139² = 535538270302022642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (517464131) 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 7 ways as a sum of consecutive naturals, for example, 524319 + ... + 525304.

It is an arithmetic number, because the mean of its divisors is an integer number (70849620).

Almost surely, 2^517464139 is an apocalyptic number.

517464139 is a deficient number, since it is larger than the sum of its proper divisors (49332821).

517464139 is a wasteful number, since it uses less digits than its factorization.

517464139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049669.

The product of its digits is 90720, while the sum is 40.

The square root of 517464139 is about 22747.8381170607. The cubic root of 517464139 is about 802.8358413559.

The spelling of 517464139 in words is "five hundred seventeen million, four hundred sixty-four thousand, one hundred thirty-nine".