11422143 has 24 divisors (see below), whose sum is σ = 17269200. Its totient is φ = 7265664.

The previous prime is 11422129. The next prime is 11422183. The reversal of 11422143 is 34122411.

It is not a de Polignac number, because 11422143 - 2⁴ = 11422127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11422183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27723 + ... + 28131.

It is an arithmetic number, because the mean of its divisors is an integer number (719550).

Almost surely, 2^11422143 is an apocalyptic number.

11422143 is a deficient number, since it is larger than the sum of its proper divisors (5847057).

11422143 is a wasteful number, since it uses less digits than its factorization.

11422143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 548 counting only the distinct ones).

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

The square root of 11422143 is about 3379.6661077686. Note that the first 3 decimals coincide. The cubic root of 11422143 is about 225.2073348107.

Adding to 11422143 its reverse (34122411), we get a palindrome (45544554).

The spelling of 11422143 in words is "eleven million, four hundred twenty-two thousand, one hundred forty-three".