12442141 has 4 divisors (see below), whose sum is σ = 12490812. Its totient is φ = 12393472.

The previous prime is 12442139. The next prime is 12442151. The reversal of 12442141 is 14124421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14124421 = 29 ⋅487049.

It can be written as a sum of positive squares in 2 ways, for example, as 9326916 + 3115225 = 3054^2 + 1765^2 .

It is a cyclic number.

It is not a de Polignac number, because 12442141 - 2¹ = 12442139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442151) 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, 23950 + ... + 24463.

It is an arithmetic number, because the mean of its divisors is an integer number (3122703).

Almost surely, 2^12442141 is an apocalyptic number.

It is an amenable number.

12442141 is a deficient number, since it is larger than the sum of its proper divisors (48671).

12442141 is an equidigital number, since it uses as much as digits as its factorization.

12442141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48670.

The product of its digits is 256, while the sum is 19.

The square root of 12442141 is about 3527.3419170815. The cubic root of 12442141 is about 231.7208108585.

Adding to 12442141 its reverse (14124421), we get a palindrome (26566562).

The spelling of 12442141 in words is "twelve million, four hundred forty-two thousand, one hundred forty-one".