517134689 has 2 divisors, whose sum is σ = 517134690. Its totient is φ = 517134688.

The previous prime is 517134659. The next prime is 517134703. The reversal of 517134689 is 986431715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417793600 + 99341089 = 20440^2 + 9967^2 .

It is a cyclic number.

It is not a de Polignac number, because 517134689 - 2⁸ = 517134433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (517134619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258567344 + 258567345.

It is an arithmetic number, because the mean of its divisors is an integer number (258567345).

Almost surely, 2^517134689 is an apocalyptic number.

It is an amenable number.

517134689 is a deficient number, since it is larger than the sum of its proper divisors (1).

517134689 is an equidigital number, since it uses as much as digits as its factorization.

517134689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 517134689 is about 22740.5956166500. The cubic root of 517134689 is about 802.6654267004.

The spelling of 517134689 in words is "five hundred seventeen million, one hundred thirty-four thousand, six hundred eighty-nine".