12134187 has 24 divisors (see below), whose sum is σ = 19392464. Its totient is φ = 7262784.

The previous prime is 12134173. The next prime is 12134189. The reversal of 12134187 is 78143121.

It is not a de Polignac number, because 12134187 - 2⁸ = 12133931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12134187.

It is not an unprimeable number, because it can be changed into a prime (12134189) 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 23 ways as a sum of consecutive naturals, for example, 2928 + ... + 5730.

Almost surely, 2^12134187 is an apocalyptic number.

12134187 is a deficient number, since it is larger than the sum of its proper divisors (7258277).

12134187 is a wasteful number, since it uses less digits than its factorization.

12134187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859 (or 2856 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 12134187 is about 3483.4159958294. The cubic root of 12134187 is about 229.7930526660.

It can be divided in two parts, 12134 and 187, that added together give a palindrome (12321).

The spelling of 12134187 in words is "twelve million, one hundred thirty-four thousand, one hundred eighty-seven".