12169994 has 16 divisors (see below), whose sum is σ = 20347200. Its totient is φ = 5425344.

The previous prime is 12169991. The next prime is 12170009. The reversal of 12169994 is 49996121.

It is a happy number.

12169994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12169991) 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, 8774 + ... + 10065.

It is an arithmetic number, because the mean of its divisors is an integer number (1271700).

Almost surely, 2^12169994 is an apocalyptic number.

12169994 is a deficient number, since it is larger than the sum of its proper divisors (8177206).

12169994 is a wasteful number, since it uses less digits than its factorization.

12169994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18877.

The product of its digits is 34992, while the sum is 41.

The square root of 12169994 is about 3488.5518485469. The cubic root of 12169994 is about 230.0188642372.

The spelling of 12169994 in words is "twelve million, one hundred sixty-nine thousand, nine hundred ninety-four".