517129345 has 8 divisors (see below), whose sum is σ = 625020480. Its totient is φ = 410726640.

The previous prime is 517129343. The next prime is 517129367. The reversal of 517129345 is 543921715.

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

It is not a de Polignac number, because 517129345 - 2¹ = 517129343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (517129343) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 371341 + ... + 372730.

It is an arithmetic number, because the mean of its divisors is an integer number (78127560).

Almost surely, 2^517129345 is an apocalyptic number.

It is an amenable number.

517129345 is a deficient number, since it is larger than the sum of its proper divisors (107891135).

517129345 is a wasteful number, since it uses less digits than its factorization.

517129345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744215.

The product of its digits is 37800, while the sum is 37.

The square root of 517129345 is about 22740.4781172252. The cubic root of 517129345 is about 802.6626618121.

The spelling of 517129345 in words is "five hundred seventeen million, one hundred twenty-nine thousand, three hundred forty-five".