13213232 has 10 divisors (see below), whose sum is σ = 25600668. Its totient is φ = 6606608.

The previous prime is 13213231. The next prime is 13213237. The reversal of 13213232 is 23231231.

It is a self number, because there is not a number n which added to its sum of digits gives 13213232.

It is not an unprimeable number, because it can be changed into a prime (13213231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412898 + ... + 412929.

Almost surely, 2^13213232 is an apocalyptic number.

It is an amenable number.

13213232 is a deficient number, since it is larger than the sum of its proper divisors (12387436).

13213232 is an equidigital number, since it uses as much as digits as its factorization.

13213232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825835 (or 825829 counting only the distinct ones).

The product of its digits is 216, while the sum is 17.

The square root of 13213232 is about 3635.0009628609. Note that the first 3 decimals coincide. The cubic root of 13213232 is about 236.4120924145.

Adding to 13213232 its reverse (23231231), we get a palindrome (36444463).

It can be divided in two parts, 132132 and 32, that multiplied together give a palindrome (4228224).

The spelling of 13213232 in words is "thirteen million, two hundred thirteen thousand, two hundred thirty-two".