12144927 has 4 divisors (see below), whose sum is σ = 16193240. Its totient is φ = 8096616.

The previous prime is 12144893. The next prime is 12144929. The reversal of 12144927 is 72944121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12144927 - 2⁶ = 12144863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12144894 and 12144903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024152 + ... + 2024157.

It is an arithmetic number, because the mean of its divisors is an integer number (4048310).

Almost surely, 2^12144927 is an apocalyptic number.

12144927 is a deficient number, since it is larger than the sum of its proper divisors (4048313).

12144927 is an equidigital number, since it uses as much as digits as its factorization.

12144927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048312.

The product of its digits is 4032, while the sum is 30.

The square root of 12144927 is about 3484.9572450749. The cubic root of 12144927 is about 229.8608294800.

The spelling of 12144927 in words is "twelve million, one hundred forty-four thousand, nine hundred twenty-seven".