12144361 has 4 divisors (see below), whose sum is σ = 12426832. Its totient is φ = 11861892.

The previous prime is 12144347. The next prime is 12144371. The reversal of 12144361 is 16344121.

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.

It is a cyclic number.

It is not a de Polignac number, because 12144361 - 2⁷ = 12144233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12144331) 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, 141171 + ... + 141256.

It is an arithmetic number, because the mean of its divisors is an integer number (3106708).

Almost surely, 2^12144361 is an apocalyptic number.

It is an amenable number.

12144361 is a deficient number, since it is larger than the sum of its proper divisors (282471).

12144361 is an equidigital number, since it uses as much as digits as its factorization.

12144361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282470.

The product of its digits is 576, while the sum is 22.

The square root of 12144361 is about 3484.8760379675. The cubic root of 12144361 is about 229.8572586269.

Adding to 12144361 its reverse (16344121), we get a palindrome (28488482).

The spelling of 12144361 in words is "twelve million, one hundred forty-four thousand, three hundred sixty-one".