12135266 has 32 divisors (see below), whose sum is σ = 21603456. Its totient is φ = 5040000.

The previous prime is 12135257. The next prime is 12135287. The reversal of 12135266 is 66253121.

12135266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43046 + ... + 43326.

It is an arithmetic number, because the mean of its divisors is an integer number (675108).

Almost surely, 2^12135266 is an apocalyptic number.

12135266 is a deficient number, since it is larger than the sum of its proper divisors (9468190).

12135266 is a wasteful number, since it uses less digits than its factorization.

12135266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its digits is 2160, while the sum is 26.

The square root of 12135266 is about 3483.5708690940. The cubic root of 12135266 is about 229.7998637075.

Adding to 12135266 its reverse (66253121), we get a palindrome (78388387).

The spelling of 12135266 in words is "twelve million, one hundred thirty-five thousand, two hundred sixty-six".