12161876 has 6 divisors (see below), whose sum is σ = 21283290. Its totient is φ = 6080936.

The previous prime is 12161869. The next prime is 12161879. The reversal of 12161876 is 67816121.

It is a happy number.

12161876 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9759376 + 2402500 = 3124^2 + 1550^2 .

It is a super-2 number, since 2×12161876² = 295822455678752, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1520231 + ... + 1520238.

It is an arithmetic number, because the mean of its divisors is an integer number (3547215).

Almost surely, 2^12161876 is an apocalyptic number.

It is an amenable number.

12161876 is a deficient number, since it is larger than the sum of its proper divisors (9121414).

12161876 is a wasteful number, since it uses less digits than its factorization.

12161876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040473 (or 3040471 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 12161876 is about 3487.3881344066. The cubic root of 12161876 is about 229.9677081319.

Adding to 12161876 its reverse (67816121), we get a palindrome (79977997).

The spelling of 12161876 in words is "twelve million, one hundred sixty-one thousand, eight hundred seventy-six".