12135256 has 32 divisors (see below), whose sum is σ = 26208000. Its totient is φ = 5160096.

The previous prime is 12135217. The next prime is 12135257. The reversal of 12135256 is 65253121.

12135256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12135256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12135257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7005 + ... + 8563.

It is an arithmetic number, because the mean of its divisors is an integer number (819000).

Almost surely, 2^12135256 is an apocalyptic number.

It is an amenable number.

12135256 is an abundant number, since it is smaller than the sum of its proper divisors (14072744).

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

12135256 is a wasteful number, since it uses less digits than its factorization.

12135256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711 (or 1707 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 12135256 is about 3483.5694337848. The cubic root of 12135256 is about 229.7998005857.

Adding to 12135256 its reverse (65253121), we get a palindrome (77388377).

The spelling of 12135256 in words is "twelve million, one hundred thirty-five thousand, two hundred fifty-six".