12135276 has 18 divisors (see below), whose sum is σ = 30675372. Its totient is φ = 4045080.

The previous prime is 12135257. The next prime is 12135287. The reversal of 12135276 is 67253121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 168510 + ... + 168581.

Almost surely, 2^12135276 is an apocalyptic number.

It is an amenable number.

12135276 is an abundant number, since it is smaller than the sum of its proper divisors (18540096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12135276 is a wasteful number, since it uses less digits than its factorization.

12135276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337101 (or 337096 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 12135276 is about 3483.5723044025. The cubic root of 12135276 is about 229.7999268293.

Adding to 12135276 its reverse (67253121), we get a palindrome (79388397).

The spelling of 12135276 in words is "twelve million, one hundred thirty-five thousand, two hundred seventy-six".