213305132 has 12 divisors (see below), whose sum is σ = 376980576. Its totient is φ = 105596400.

The previous prime is 213305107. The next prime is 213305173. The reversal of 213305132 is 231503312.

213305132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263588 + ... + 264395.

It is an arithmetic number, because the mean of its divisors is an integer number (31415048).

Almost surely, 2^213305132 is an apocalyptic number.

It is an amenable number.

213305132 is a deficient number, since it is larger than the sum of its proper divisors (163675444).

213305132 is a wasteful number, since it uses less digits than its factorization.

213305132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528088 (or 528086 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 213305132 is about 14604.9694282460. The cubic root of 213305132 is about 597.4943022163.

Adding to 213305132 its reverse (231503312), we get a palindrome (444808444).

It can be divided in two parts, 21330 and 5132, that added together give a palindrome (26462).

The spelling of 213305132 in words is "two hundred thirteen million, three hundred five thousand, one hundred thirty-two".