1443814069 has 2 divisors, whose sum is σ = 1443814070. Its totient is φ = 1443814068.

The previous prime is 1443814067. The next prime is 1443814129. The reversal of 1443814069 is 9604183441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1264655844 + 179158225 = 35562^2 + 13385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443814069 - 2¹ = 1443814067 is a prime.

It is a super-2 number, since 2×1443814069² = 4169198131684673522, which contains 22 as substring.

Together with 1443814067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1443814061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721907034 + 721907035.

It is an arithmetic number, because the mean of its divisors is an integer number (721907035).

Almost surely, 2^1443814069 is an apocalyptic number.

It is an amenable number.

1443814069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443814069 is an equidigital number, since it uses as much as digits as its factorization.

1443814069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1443814069 is about 37997.5534607164. The cubic root of 1443814069 is about 1130.2393491477.

The spelling of 1443814069 in words is "one billion, four hundred forty-three million, eight hundred fourteen thousand, sixty-nine".