12132318 has 16 divisors (see below), whose sum is σ = 26470656. Its totient is φ = 3676440.

The previous prime is 12132311. The next prime is 12132319. The reversal of 12132318 is 81323121.

It is a junction number, because it is equal to n+sod(n) for n = 12132294 and 12132303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91846 + ... + 91977.

It is an arithmetic number, because the mean of its divisors is an integer number (1654416).

Almost surely, 2^12132318 is an apocalyptic number.

12132318 is an abundant number, since it is smaller than the sum of its proper divisors (14338338).

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

12132318 is a wasteful number, since it uses less digits than its factorization.

12132318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183839.

The product of its digits is 288, while the sum is 21.

The square root of 12132318 is about 3483.1477143526. The cubic root of 12132318 is about 229.7812539009.

Adding to 12132318 its reverse (81323121), we get a palindrome (93455439).

The spelling of 12132318 in words is "twelve million, one hundred thirty-two thousand, three hundred eighteen".