4143553121 has 2 divisors, whose sum is σ = 4143553122. Its totient is φ = 4143553120.

The previous prime is 4143553103. The next prime is 4143553177. The reversal of 4143553121 is 1213553414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3725759521 + 417793600 = 61039^2 + 20440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4143553121 is a prime.

It is not a weakly prime, because it can be changed into another prime (4143550121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071776560 + 2071776561.

It is an arithmetic number, because the mean of its divisors is an integer number (2071776561).

Almost surely, 2^4143553121 is an apocalyptic number.

It is an amenable number.

4143553121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4143553121 is an equidigital number, since it uses as much as digits as its factorization.

4143553121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 4143553121 is about 64370.4367003984. The cubic root of 4143553121 is about 1606.1680044019.

The spelling of 4143553121 in words is "four billion, one hundred forty-three million, five hundred fifty-three thousand, one hundred twenty-one".