12187126 has 16 divisors (see below), whose sum is σ = 21129120. Its totient is φ = 5163840.

The previous prime is 12187121. The next prime is 12187183. The reversal of 12187126 is 62178121.

It is a junction number, because it is equal to n+sod(n) for n = 12187094 and 12187103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12187121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3645 + ... + 6136.

It is an arithmetic number, because the mean of its divisors is an integer number (1320570).

Almost surely, 2^12187126 is an apocalyptic number.

12187126 is a deficient number, since it is larger than the sum of its proper divisors (8941994).

12187126 is an equidigital number, since it uses as much as digits as its factorization.

12187126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9879.

The product of its digits is 1344, while the sum is 28.

The square root of 12187126 is about 3491.0064451387. The cubic root of 12187126 is about 230.1267480345.

The spelling of 12187126 in words is "twelve million, one hundred eighty-seven thousand, one hundred twenty-six".