7443212129 has 2 divisors, whose sum is σ = 7443212130. Its totient is φ = 7443212128.

The previous prime is 7443212111. The next prime is 7443212167. The reversal of 7443212129 is 9212123447.

7443212129 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5108389729 + 2334822400 = 71473^2 + 48320^2 .

It is a cyclic number.

It is not a de Polignac number, because 7443212129 - 2³² = 3148244833 is a prime.

It is not a weakly prime, because it can be changed into another prime (7443212429) 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, 3721606064 + 3721606065.

It is an arithmetic number, because the mean of its divisors is an integer number (3721606065).

Almost surely, 2^7443212129 is an apocalyptic number.

It is an amenable number.

7443212129 is a deficient number, since it is larger than the sum of its proper divisors (1).

7443212129 is an equidigital number, since it uses as much as digits as its factorization.

7443212129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 7443212129 is about 86274.0524665441. The cubic root of 7443212129 is about 1952.4809210747.

The spelling of 7443212129 in words is "seven billion, four hundred forty-three million, two hundred twelve thousand, one hundred twenty-nine".