3221426143 has 4 divisors (see below), whose sum is σ = 3469228168. Its totient is φ = 2973624120.

The previous prime is 3221426113. The next prime is 3221426147. The reversal of 3221426143 is 3416241223.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3221426143 - 2¹³ = 3221417951 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 (3221426147) 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, 123900993 + ... + 123901018.

It is an arithmetic number, because the mean of its divisors is an integer number (867307042).

Almost surely, 2^3221426143 is an apocalyptic number.

3221426143 is a deficient number, since it is larger than the sum of its proper divisors (247802025).

3221426143 is a wasteful number, since it uses less digits than its factorization.

3221426143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247802024.

The product of its digits is 6912, while the sum is 28.

The square root of 3221426143 is about 56757.6086793656. The cubic root of 3221426143 is about 1476.8942271571.

Adding to 3221426143 its reverse (3416241223), we get a palindrome (6637667366).

The spelling of 3221426143 in words is "three billion, two hundred twenty-one million, four hundred twenty-six thousand, one hundred forty-three".