12125843 has 2 divisors, whose sum is σ = 12125844. Its totient is φ = 12125842.

The previous prime is 12125837. The next prime is 12125849. The reversal of 12125843 is 34852121.

It is a balanced prime because it is at equal distance from previous prime (12125837) and next prime (12125849).

It is an emirp because it is prime and its reverse (34852121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12125843 - 2⁸ = 12125587 is a prime.

It is not a weakly prime, because it can be changed into another prime (12125849) 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 as a sum of consecutive naturals, namely, 6062921 + 6062922.

It is an arithmetic number, because the mean of its divisors is an integer number (6062922).

Almost surely, 2^12125843 is an apocalyptic number.

12125843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12125843 is an equidigital number, since it uses as much as digits as its factorization.

12125843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 26.

The square root of 12125843 is about 3482.2181149377. The cubic root of 12125843 is about 229.7403686558.

Adding to 12125843 its reverse (34852121), we get a palindrome (46977964).

The spelling of 12125843 in words is "twelve million, one hundred twenty-five thousand, eight hundred forty-three".