12145806 has 12 divisors (see below), whose sum is σ = 26315952. Its totient is φ = 4048596.

The previous prime is 12145801. The next prime is 12145829. The reversal of 12145806 is 60854121.

12145806 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 12145806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337366 + ... + 337401.

It is an arithmetic number, because the mean of its divisors is an integer number (2192996).

Almost surely, 2^12145806 is an apocalyptic number.

12145806 is an abundant number, since it is smaller than the sum of its proper divisors (14170146).

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

12145806 is a wasteful number, since it uses less digits than its factorization.

12145806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674775 (or 674772 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12145806 is about 3485.0833562485. The cubic root of 12145806 is about 229.8663748076.

Adding to 12145806 its reverse (60854121), we get a palindrome (72999927).

The spelling of 12145806 in words is "twelve million, one hundred forty-five thousand, eight hundred six".