518126441 has 12 divisors (see below), whose sum is σ = 623503620. Its totient is φ = 428793120.

The previous prime is 518126431. The next prime is 518126443. The reversal of 518126441 is 144621815.

It can be written as a sum of positive squares in 2 ways, for example, as 113955625 + 404170816 = 10675^2 + 20104^2 .

It is not a de Polignac number, because 518126441 - 2¹⁰ = 518125417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 518126398 and 518126407.

It is not an unprimeable number, because it can be changed into a prime (518126443) 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 11 ways as a sum of consecutive naturals, for example, 180890 + ... + 183731.

It is an arithmetic number, because the mean of its divisors is an integer number (51958635).

Almost surely, 2^518126441 is an apocalyptic number.

It is an amenable number.

518126441 is a deficient number, since it is larger than the sum of its proper divisors (105377179).

518126441 is a wasteful number, since it uses less digits than its factorization.

518126441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364664 (or 364657 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 518126441 is about 22762.3909332917. The cubic root of 518126441 is about 803.1782116802.

The spelling of 518126441 in words is "five hundred eighteen million, one hundred twenty-six thousand, four hundred forty-one".