12163994 has 8 divisors (see below), whose sum is σ = 18434388. Its totient is φ = 6019200.

The previous prime is 12163979. The next prime is 12163999. The reversal of 12163994 is 49936121.

It can be written as a sum of positive squares in 2 ways, for example, as 12145225 + 18769 = 3485^2 + 137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12163999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31157 + ... + 31544.

Almost surely, 2^12163994 is an apocalyptic number.

12163994 is a deficient number, since it is larger than the sum of its proper divisors (6270394).

12163994 is an equidigital number, since it uses as much as digits as its factorization.

12163994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62800.

The product of its digits is 11664, while the sum is 35.

The square root of 12163994 is about 3487.6917868413. The cubic root of 12163994 is about 229.9810570410.

The spelling of 12163994 in words is "twelve million, one hundred sixty-three thousand, nine hundred ninety-four".