518494745 has 8 divisors (see below), whose sum is σ = 622442184. Its totient is φ = 414630144.

The previous prime is 518494703. The next prime is 518494751. The reversal of 518494745 is 547494815.

It is a happy number.

518494745 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29333056 + 489161689 = 5416^2 + 22117^2 .

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 518494745 - 2⁸ = 518494489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 518494745.

It is an unprimeable number.

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, 5984 + ... + 32753.

It is an arithmetic number, because the mean of its divisors is an integer number (77805273).

Almost surely, 2^518494745 is an apocalyptic number.

It is an amenable number.

518494745 is a deficient number, since it is larger than the sum of its proper divisors (103947439).

518494745 is a wasteful number, since it uses less digits than its factorization.

518494745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41419.

The product of its digits is 806400, while the sum is 47.

The square root of 518494745 is about 22770.4796831336. The cubic root of 518494745 is about 803.3684764885.

The spelling of 518494745 in words is "five hundred eighteen million, four hundred ninety-four thousand, seven hundred forty-five".