22144141 has 4 divisors (see below), whose sum is σ = 22684284. Its totient is φ = 21604000.

The previous prime is 22144117. The next prime is 22144169. The reversal of 22144141 is 14144122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2528100 + 19616041 = 1590^2 + 4429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22144141 is a prime.

It is a Duffinian number.

22144141 is a modest number, since divided by 4141 gives 2214 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144181) 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, 270010 + ... + 270091.

It is an arithmetic number, because the mean of its divisors is an integer number (5671071).

Almost surely, 2^22144141 is an apocalyptic number.

It is an amenable number.

22144141 is a deficient number, since it is larger than the sum of its proper divisors (540143).

22144141 is an equidigital number, since it uses as much as digits as its factorization.

22144141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540142.

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

The square root of 22144141 is about 4705.7561560285. The cubic root of 22144141 is about 280.8145540856.

Subtracting from 22144141 its sum of digits (19), we obtain a palindrome (22144122).

Adding to 22144141 its reverse (14144122), we get a palindrome (36288263).

The spelling of 22144141 in words is "twenty-two million, one hundred forty-four thousand, one hundred forty-one".