12131876 has 6 divisors (see below), whose sum is σ = 21230790. Its totient is φ = 6065936.

The previous prime is 12131849. The next prime is 12131909. The reversal of 12131876 is 67813121.

It can be written as a sum of positive squares in only one way, i.e., 10086976 + 2044900 = 3176^2 + 1430^2 .

It is an unprimeable number.

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, 1516481 + ... + 1516488.

It is an arithmetic number, because the mean of its divisors is an integer number (3538465).

Almost surely, 2^12131876 is an apocalyptic number.

It is an amenable number.

12131876 is a deficient number, since it is larger than the sum of its proper divisors (9098914).

12131876 is a wasteful number, since it uses less digits than its factorization.

12131876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032973 (or 3032971 counting only the distinct ones).

The product of its digits is 2016, while the sum is 29.

The square root of 12131876 is about 3483.0842654176. The cubic root of 12131876 is about 229.7784634325.

Adding to 12131876 its reverse (67813121), we get a palindrome (79944997).

The spelling of 12131876 in words is "twelve million, one hundred thirty-one thousand, eight hundred seventy-six".