3224143981 has 2 divisors, whose sum is σ = 3224143982. Its totient is φ = 3224143980.

The previous prime is 3224143969. The next prime is 3224144003. The reversal of 3224143981 is 1893414223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2902515625 + 321628356 = 53875^2 + 17934^2 .

It is a cyclic number.

It is not a de Polignac number, because 3224143981 - 2²¹ = 3222046829 is a prime.

It is a super-2 number, since 2×3224143981² = 20790208820437056722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3224143981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3224143931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612071990 + 1612071991.

It is an arithmetic number, because the mean of its divisors is an integer number (1612071991).

Almost surely, 2^3224143981 is an apocalyptic number.

It is an amenable number.

3224143981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3224143981 is an equidigital number, since it uses as much as digits as its factorization.

3224143981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 3224143981 is about 56781.5461307633. The cubic root of 3224143981 is about 1477.3094501854.

The spelling of 3224143981 in words is "three billion, two hundred twenty-four million, one hundred forty-three thousand, nine hundred eighty-one".