12132406 has 32 divisors (see below), whose sum is σ = 21772800. Its totient is φ = 4997280.

The previous prime is 12132401. The next prime is 12132443. The reversal of 12132406 is 60423121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16515 + ... + 17233.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 2^12132406 is an apocalyptic number.

12132406 is a deficient number, since it is larger than the sum of its proper divisors (9640394).

12132406 is a wasteful number, since it uses less digits than its factorization.

12132406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12132406 is about 3483.1603465818. The cubic root of 12132406 is about 229.7818094611.

Adding to 12132406 its reverse (60423121), we get a palindrome (72555527).

The spelling of 12132406 in words is "twelve million, one hundred thirty-two thousand, four hundred six".