12816132 has 48 divisors (see below), whose sum is σ = 34363392. Its totient is φ = 3641760.

The previous prime is 12816131. The next prime is 12816137. The reversal of 12816132 is 23161821.

It is not an unprimeable number, because it can be changed into a prime (12816131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22483 + ... + 23045.

It is an arithmetic number, because the mean of its divisors is an integer number (715904).

Almost surely, 2^12816132 is an apocalyptic number.

12816132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12816132 is an abundant number, since it is smaller than the sum of its proper divisors (21547260).

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

12816132 is a wasteful number, since it uses less digits than its factorization.

12816132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 846 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 12816132 is about 3579.9625696367. The cubic root of 12816132 is about 234.0196491645.

Adding to 12816132 its reverse (23161821), we get a palindrome (35977953).

The spelling of 12816132 in words is "twelve million, eight hundred sixteen thousand, one hundred thirty-two".