1443423089 has 2 divisors, whose sum is σ = 1443423090. Its totient is φ = 1443423088.

The previous prime is 1443423077. The next prime is 1443423127. The reversal of 1443423089 is 9803243441.

It is an a-pointer prime, because the next prime (1443423127) can be obtained adding 1443423089 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1269710689 + 173712400 = 35633^2 + 13180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443423089 - 2⁴ = 1443423073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1443423049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721711544 + 721711545.

It is an arithmetic number, because the mean of its divisors is an integer number (721711545).

Almost surely, 2^1443423089 is an apocalyptic number.

It is an amenable number.

1443423089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443423089 is an equidigital number, since it uses as much as digits as its factorization.

1443423089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 1443423089 is about 37992.4083074501. The cubic root of 1443423089 is about 1130.1373182642.

The spelling of 1443423089 in words is "one billion, four hundred forty-three million, four hundred twenty-three thousand, eighty-nine".