518738113 has 16 divisors (see below), whose sum is σ = 557706240. Its totient is φ = 481225536.

The previous prime is 518738071. The next prime is 518738117. The reversal of 518738113 is 311837815.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-518738113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

518738113 is a Rhonda number in base 10.

Its product of digits (20160) is a multiple of the sum of its prime divisors (2016).

It is not an unprimeable number, because it can be changed into a prime (518738117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330256 + ... + 331822.

It is an arithmetic number, because the mean of its divisors is an integer number (34856640).

Almost surely, 2^518738113 is an apocalyptic number.

It is an amenable number.

518738113 is a deficient number, since it is larger than the sum of its proper divisors (38968127).

518738113 is a wasteful number, since it uses less digits than its factorization.

518738113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016.

The product of its digits is 20160, while the sum is 37.

The square root of 518738113 is about 22775.8229928141. The cubic root of 518738113 is about 803.4941502775.

The spelling of 518738113 in words is "five hundred eighteen million, seven hundred thirty-eight thousand, one hundred thirteen".