517273243 has 8 divisors (see below), whose sum is σ = 540154368. Its totient is φ = 494424744.

The previous prime is 517273231. The next prime is 517273327. The reversal of 517273243 is 342372715.

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

It is not a de Polignac number, because 517273243 - 2²¹ = 515176091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 517273199 and 517273208.

It is not an unprimeable number, because it can be changed into a prime (517273643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27646 + ... + 42412.

It is an arithmetic number, because the mean of its divisors is an integer number (67519296).

Almost surely, 2^517273243 is an apocalyptic number.

517273243 is a deficient number, since it is larger than the sum of its proper divisors (22881125).

517273243 is a wasteful number, since it uses less digits than its factorization.

517273243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16313.

The product of its digits is 35280, while the sum is 34.

The square root of 517273243 is about 22743.6418148018. The cubic root of 517273243 is about 802.7371053669.

The spelling of 517273243 in words is "five hundred seventeen million, two hundred seventy-three thousand, two hundred forty-three".