12305000 has 80 divisors (see below), whose sum is σ = 30365280. Its totient is φ = 4664000.

The previous prime is 12304987. The next prime is 12305003. The reversal of 12305000 is 50321.

12305000 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 (12305003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 114947 + ... + 115053.

It is an arithmetic number, because the mean of its divisors is an integer number (379566).

Almost surely, 2^12305000 is an apocalyptic number.

12305000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12305000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15182640).

12305000 is an abundant number, since it is smaller than the sum of its proper divisors (18060280).

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

12305000 is a wasteful number, since it uses less digits than its factorization.

12305000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 12305000 is about 3507.8483433581. The cubic root of 12305000 is about 230.8662981966.

Adding to 12305000 its reverse (50321), we get a palindrome (12355321).

The spelling of 12305000 in words is "twelve million, three hundred five thousand".