12123606 has 16 divisors (see below), whose sum is σ = 26451648. Its totient is φ = 3673800.

The previous prime is 12123589. The next prime is 12123607. The reversal of 12123606 is 60632121.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123607) 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, 91780 + ... + 91911.

It is an arithmetic number, because the mean of its divisors is an integer number (1653228).

Almost surely, 2^12123606 is an apocalyptic number.

12123606 is an abundant number, since it is smaller than the sum of its proper divisors (14328042).

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

12123606 is a wasteful number, since it uses less digits than its factorization.

12123606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183707.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12123606 is about 3481.8968968078. The cubic root of 12123606 is about 229.7262401313.

Adding to 12123606 its reverse (60632121), we get a palindrome (72755727).

The spelling of 12123606 in words is "twelve million, one hundred twenty-three thousand, six hundred six".