1443309055 has 4 divisors (see below), whose sum is σ = 1731970872. Its totient is φ = 1154647240.

The previous prime is 1443309053. The next prime is 1443309079. The reversal of 1443309055 is 5509033441.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1443309055 - 2¹ = 1443309053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1443309055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443309053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144330901 + ... + 144330910.

It is an arithmetic number, because the mean of its divisors is an integer number (432992718).

Almost surely, 2^1443309055 is an apocalyptic number.

1443309055 is a deficient number, since it is larger than the sum of its proper divisors (288661817).

1443309055 is an equidigital number, since it uses as much as digits as its factorization.

1443309055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288661816.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1443309055 is about 37990.9075306184. The cubic root of 1443309055 is about 1130.1075562644.

The spelling of 1443309055 in words is "one billion, four hundred forty-three million, three hundred nine thousand, fifty-five".