12135306 has 32 divisors (see below), whose sum is σ = 25878528. Its totient is φ = 3784880.

The previous prime is 12135293. The next prime is 12135307. The reversal of 12135306 is 60353121.

12135306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12135307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5551 + ... + 7421.

It is an arithmetic number, because the mean of its divisors is an integer number (808704).

Almost surely, 2^12135306 is an apocalyptic number.

12135306 is an abundant number, since it is smaller than the sum of its proper divisors (13743222).

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

12135306 is a wasteful number, since it uses less digits than its factorization.

12135306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 12135306 is about 3483.5766103245. The cubic root of 12135306 is about 229.8001161944.

Adding to 12135306 its reverse (60353121), we get a palindrome (72488427).

The spelling of 12135306 in words is "twelve million, one hundred thirty-five thousand, three hundred six".