12144023 has 4 divisors (see below), whose sum is σ = 12672048. Its totient is φ = 11616000.

The previous prime is 12144019. The next prime is 12144031. The reversal of 12144023 is 32044121.

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

It is a cyclic number.

It is not a de Polignac number, because 12144023 - 2² = 12144019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12143992 and 12144010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263978 + ... + 264023.

It is an arithmetic number, because the mean of its divisors is an integer number (3168012).

Almost surely, 2^12144023 is an apocalyptic number.

12144023 is a deficient number, since it is larger than the sum of its proper divisors (528025).

12144023 is an equidigital number, since it uses as much as digits as its factorization.

12144023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528024.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12144023 is about 3484.8275423613. The cubic root of 12144023 is about 229.8551261564.

Adding to 12144023 its reverse (32044121), we get a palindrome (44188144).

It can be divided in two parts, 121 and 44023, that added together give a palindrome (44144).

The spelling of 12144023 in words is "twelve million, one hundred forty-four thousand, twenty-three".