12144475 has 24 divisors (see below), whose sum is σ = 17811360. Its totient is φ = 8037120.

The previous prime is 12144463. The next prime is 12144481. The reversal of 12144475 is 57444121.

It is not a de Polignac number, because 12144475 - 2⁷ = 12144347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3879 + ... + 6271.

It is an arithmetic number, because the mean of its divisors is an integer number (742140).

Almost surely, 2^12144475 is an apocalyptic number.

12144475 is a deficient number, since it is larger than the sum of its proper divisors (5666885).

12144475 is a wasteful number, since it uses less digits than its factorization.

12144475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439 (or 2434 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 12144475 is about 3484.8923943215. The cubic root of 12144475 is about 229.8579778536.

Adding to 12144475 its reverse (57444121), we get a palindrome (69588596).

The spelling of 12144475 in words is "twelve million, one hundred forty-four thousand, four hundred seventy-five".