12532218 has 8 divisors (see below), whose sum is σ = 25064448. Its totient is φ = 4177404.

The previous prime is 12532199. The next prime is 12532237. The reversal of 12532218 is 81223521.

It is an interprime number because it is at equal distance from previous prime (12532199) and next prime (12532237).

It is a sphenic number, since it is the product of 3 distinct primes.

12532218 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044346 + ... + 1044357.

It is an arithmetic number, because the mean of its divisors is an integer number (3133056).

Almost surely, 2^12532218 is an apocalyptic number.

12532218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12532218 is a wasteful number, since it uses less digits than its factorization.

12532218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088708.

The product of its digits is 960, while the sum is 24.

The square root of 12532218 is about 3540.0872870595. The cubic root of 12532218 is about 232.2786608987.

Adding to 12532218 its reverse (81223521), we get a palindrome (93755739).

The spelling of 12532218 in words is "twelve million, five hundred thirty-two thousand, two hundred eighteen".