12169900 has 36 divisors (see below), whose sum is σ = 26638920. Its totient is φ = 4825600.

The previous prime is 12169891. The next prime is 12169933. The reversal of 12169900 is 996121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12636 + ... + 13564.

It is an arithmetic number, because the mean of its divisors is an integer number (739970).

Almost surely, 2^12169900 is an apocalyptic number.

12169900 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 12169900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13319460).

12169900 is an abundant number, since it is smaller than the sum of its proper divisors (14469020).

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

12169900 is a wasteful number, since it uses less digits than its factorization.

12169900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 12169900 is about 3488.5383758818. The cubic root of 12169900 is about 230.0182720203.

The spelling of 12169900 in words is "twelve million, one hundred sixty-nine thousand, nine hundred".