12145406 has 16 divisors (see below), whose sum is σ = 22422624. Its totient is φ = 4804704.

The previous prime is 12145387. The next prime is 12145417. The reversal of 12145406 is 60454121.

It is a Curzon number.

It is a congruent number.

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, 33185 + ... + 33548.

It is an arithmetic number, because the mean of its divisors is an integer number (1401414).

Almost surely, 2^12145406 is an apocalyptic number.

12145406 is a deficient number, since it is larger than the sum of its proper divisors (10277218).

12145406 is a wasteful number, since it uses less digits than its factorization.

12145406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66755.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 12145406 is about 3485.0259683394. The cubic root of 12145406 is about 229.8638513697.

Adding to 12145406 its reverse (60454121), we get a palindrome (72599527).

The spelling of 12145406 in words is "twelve million, one hundred forty-five thousand, four hundred six".