12180850 has 24 divisors (see below), whose sum is σ = 24717168. Its totient is φ = 4429200.

The previous prime is 12180829. The next prime is 12180851. The reversal of 12180850 is 5808121.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12180851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10524 + ... + 11623.

It is an arithmetic number, because the mean of its divisors is an integer number (1029882).

Almost surely, 2^12180850 is an apocalyptic number.

12180850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12180850 is an abundant number, since it is smaller than the sum of its proper divisors (12536318).

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

12180850 is a wasteful number, since it uses less digits than its factorization.

12180850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22170 (or 22165 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 12180850 is about 3490.1074482027. The cubic root of 12180850 is about 230.0872384881.

Adding to 12180850 its reverse (5808121), we get a palindrome (17988971).

The spelling of 12180850 in words is "twelve million, one hundred eighty thousand, eight hundred fifty".