12134205 has 28 divisors (see below), whose sum is σ = 21838140. Its totient is φ = 6469632.

The previous prime is 12134203. The next prime is 12134233. The reversal of 12134205 is 50243121.

It can be written as a sum of positive squares in 2 ways, for example, as 4549689 + 7584516 = 2133^2 + 2754^2 .

It is not a de Polignac number, because 12134205 - 2¹ = 12134203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12134201) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1981 + ... + 5309.

Almost surely, 2^12134205 is an apocalyptic number.

12134205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12134205 is a deficient number, since it is larger than the sum of its proper divisors (9703935).

12134205 is an frugal number, since it uses more digits than its factorization.

12134205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352 (or 3337 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12134205 is about 3483.4185794992. The cubic root of 12134205 is about 229.7931662919.

Adding to 12134205 its reverse (50243121), we get a palindrome (62377326).

The spelling of 12134205 in words is "twelve million, one hundred thirty-four thousand, two hundred five".