12144293 has 4 divisors (see below), whose sum is σ = 13879200. Its totient is φ = 10409388.

The previous prime is 12144289. The next prime is 12144313. The reversal of 12144293 is 39244121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39244121 = 7 ⋅5606303.

It is a cyclic number.

It is not a de Polignac number, because 12144293 - 2² = 12144289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144233) 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, 867443 + ... + 867456.

It is an arithmetic number, because the mean of its divisors is an integer number (3469800).

Almost surely, 2^12144293 is an apocalyptic number.

It is an amenable number.

12144293 is a deficient number, since it is larger than the sum of its proper divisors (1734907).

12144293 is an equidigital number, since it uses as much as digits as its factorization.

12144293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734906.

The product of its digits is 1728, while the sum is 26.

The square root of 12144293 is about 3484.8662815092. The cubic root of 12144293 is about 229.8568296124.

The spelling of 12144293 in words is "twelve million, one hundred forty-four thousand, two hundred ninety-three".