12130837 has 4 divisors (see below), whose sum is σ = 12151116. Its totient is φ = 12110560.

The previous prime is 12130771. The next prime is 12130849. The reversal of 12130837 is 73803121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2852721 + 9278116 = 1689^2 + 3046^2 .

It is a cyclic number.

It is not a de Polignac number, because 12130837 - 2²³ = 3742229 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 (12131837) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 9214 + ... + 10447.

It is an arithmetic number, because the mean of its divisors is an integer number (3037779).

Almost surely, 2^12130837 is an apocalyptic number.

It is an amenable number.

12130837 is a deficient number, since it is larger than the sum of its proper divisors (20279).

12130837 is an equidigital number, since it uses as much as digits as its factorization.

12130837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20278.

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

The square root of 12130837 is about 3482.9351128036. The cubic root of 12130837 is about 229.7719036710.

Adding to 12130837 its reverse (73803121), we get a palindrome (85933958).

The spelling of 12130837 in words is "twelve million, one hundred thirty thousand, eight hundred thirty-seven".