12163945 has 8 divisors (see below), whose sum is σ = 14679360. Its totient is φ = 9676080.

The previous prime is 12163937. The next prime is 12163951. The reversal of 12163945 is 54936121.

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

It is not a de Polignac number, because 12163945 - 2³ = 12163937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5901 + ... + 7690.

It is an arithmetic number, because the mean of its divisors is an integer number (1834920).

Almost surely, 2^12163945 is an apocalyptic number.

It is an amenable number.

12163945 is a deficient number, since it is larger than the sum of its proper divisors (2515415).

12163945 is a wasteful number, since it uses less digits than its factorization.

12163945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13775.

The product of its digits is 6480, while the sum is 31.

The square root of 12163945 is about 3487.6847621309. The cubic root of 12163945 is about 229.9807482311.

The spelling of 12163945 in words is "twelve million, one hundred sixty-three thousand, nine hundred forty-five".