12116437 has 4 divisors (see below), whose sum is σ = 12124780. Its totient is φ = 12108096.

The previous prime is 12116431. The next prime is 12116449. The reversal of 12116437 is 73461121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 461041 + 11655396 = 679^2 + 3414^2 .

It is a cyclic number.

It is not a de Polignac number, because 12116437 - 2¹⁹ = 11592149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12116431) 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, 1362 + ... + 5107.

It is an arithmetic number, because the mean of its divisors is an integer number (3031195).

Almost surely, 2^12116437 is an apocalyptic number.

It is an amenable number.

12116437 is a deficient number, since it is larger than the sum of its proper divisors (8343).

12116437 is an equidigital number, since it uses as much as digits as its factorization.

12116437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8342.

The product of its digits is 1008, while the sum is 25.

The square root of 12116437 is about 3480.8672769872. The cubic root of 12116437 is about 229.6809501919.

Adding to 12116437 its reverse (73461121), we get a palindrome (85577558).

The spelling of 12116437 in words is "twelve million, one hundred sixteen thousand, four hundred thirty-seven".