518112271 has 4 divisors (see below), whose sum is σ = 520375000. Its totient is φ = 515849544.

The previous prime is 518112263. The next prime is 518112299. The reversal of 518112271 is 172211815.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172211815 = 5 ⋅34442363.

It is a cyclic number.

It is not a de Polignac number, because 518112271 - 2³ = 518112263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518112241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1131021 + ... + 1131478.

It is an arithmetic number, because the mean of its divisors is an integer number (130093750).

Almost surely, 2^518112271 is an apocalyptic number.

518112271 is a deficient number, since it is larger than the sum of its proper divisors (2262729).

518112271 is a wasteful number, since it uses less digits than its factorization.

518112271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262728.

The product of its digits is 1120, while the sum is 28.

The square root of 518112271 is about 22762.0796721214. The cubic root of 518112271 is about 803.1708896972.

The spelling of 518112271 in words is "five hundred eighteen million, one hundred twelve thousand, two hundred seventy-one".