22143141 has 12 divisors (see below), whose sum is σ = 32269068. Its totient is φ = 14630784.

The previous prime is 22143137. The next prime is 22143161. The reversal of 22143141 is 14134122.

It can be written as a sum of positive squares in 2 ways, for example, as 1404225 + 20738916 = 1185^2 + 4554^2 .

It is not a de Polignac number, because 22143141 - 2² = 22143137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9870 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (2689089).

Almost surely, 2^22143141 is an apocalyptic number.

It is an amenable number.

22143141 is a deficient number, since it is larger than the sum of its proper divisors (10125927).

22143141 is a wasteful number, since it uses less digits than its factorization.

22143141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21892 (or 21889 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 22143141 is about 4705.6499019795. The cubic root of 22143141 is about 280.8103269511.

Adding to 22143141 its reverse (14134122), we get a palindrome (36277263).

The spelling of 22143141 in words is "twenty-two million, one hundred forty-three thousand, one hundred forty-one".