12116651 has 4 divisors (see below), whose sum is σ = 12223992. Its totient is φ = 12009312.

The previous prime is 12116641. The next prime is 12116659. The reversal of 12116651 is 15661121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12116651 - 2²² = 7922347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12116659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53501 + ... + 53726.

It is an arithmetic number, because the mean of its divisors is an integer number (3055998).

Almost surely, 2^12116651 is an apocalyptic number.

12116651 is a deficient number, since it is larger than the sum of its proper divisors (107341).

12116651 is a wasteful number, since it uses less digits than its factorization.

12116651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107340.

The product of its digits is 360, while the sum is 23.

The square root of 12116651 is about 3480.8980163171. The cubic root of 12116651 is about 229.6823023891.

Adding to 12116651 its reverse (15661121), we get a palindrome (27777772).

The spelling of 12116651 in words is "twelve million, one hundred sixteen thousand, six hundred fifty-one".