12163923 has 6 divisors (see below), whose sum is σ = 17570124. Its totient is φ = 8109276.

The previous prime is 12163843. The next prime is 12163937. The reversal of 12163923 is 32936121.

12163923 is a `hidden beast` number, since 1 + 2 + 1 + 639 + 23 = 666.

It is not a de Polignac number, because 12163923 - 2¹² = 12159827 is a prime.

It is a super-2 number, since 2×12163923² = 295922045499858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12163973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 675765 + ... + 675782.

It is an arithmetic number, because the mean of its divisors is an integer number (2928354).

Almost surely, 2^12163923 is an apocalyptic number.

12163923 is a deficient number, since it is larger than the sum of its proper divisors (5406201).

12163923 is a wasteful number, since it uses less digits than its factorization.

12163923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351553 (or 1351550 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 12163923 is about 3487.6816081747. The cubic root of 12163923 is about 229.9806095814.

The spelling of 12163923 in words is "twelve million, one hundred sixty-three thousand, nine hundred twenty-three".