34221143 has 4 divisors (see below), whose sum is σ = 37332168. Its totient is φ = 31110120.

The previous prime is 34221137. The next prime is 34221157. The reversal of 34221143 is 34112243.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34221143 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 (34221113) 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 3 ways as a sum of consecutive naturals, for example, 1555496 + ... + 1555517.

It is an arithmetic number, because the mean of its divisors is an integer number (9333042).

Almost surely, 2^34221143 is an apocalyptic number.

34221143 is a deficient number, since it is larger than the sum of its proper divisors (3111025).

34221143 is a wasteful number, since it uses less digits than its factorization.

34221143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111024.

The product of its digits is 576, while the sum is 20.

The square root of 34221143 is about 5849.8840159442. The cubic root of 34221143 is about 324.6620328911.

Adding to 34221143 its reverse (34112243), we get a palindrome (68333386).

Subtracting from 34221143 its reverse (34112243), we obtain a square (108900 = 330²).

The spelling of 34221143 in words is "thirty-four million, two hundred twenty-one thousand, one hundred forty-three".