518331132 has 36 divisors (see below), whose sum is σ = 1429338456. Its totient is φ = 157069920.

The previous prime is 518331097. The next prime is 518331133. The reversal of 518331132 is 231133815.

518331132 is a `hidden beast` number, since 518 + 33 + 113 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 518331096 and 518331105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518331133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 654063 + ... + 654854.

It is an arithmetic number, because the mean of its divisors is an integer number (39703846).

Almost surely, 2^518331132 is an apocalyptic number.

It is an amenable number.

518331132 is an abundant number, since it is smaller than the sum of its proper divisors (911007324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518331132 is a wasteful number, since it uses less digits than its factorization.

518331132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308938 (or 1308933 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 518331132 is about 22766.8867436898. The cubic root of 518331132 is about 803.2839656001.

Adding to 518331132 its reverse (231133815), we get a palindrome (749464947).

It can be divided in two parts, 5183 and 31132, that added together give a triangular number (36315 = T₂₆₉).

The spelling of 518331132 in words is "five hundred eighteen million, three hundred thirty-one thousand, one hundred thirty-two".