144328809 has 8 divisors (see below), whose sum is σ = 195700320. Its totient is φ = 94588256.

The previous prime is 144328801. The next prime is 144328817. The reversal of 144328809 is 908823441.

It is an interprime number because it is at equal distance from previous prime (144328801) and next prime (144328817).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144328809 - 2³ = 144328801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144328801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407532 + ... + 407885.

It is an arithmetic number, because the mean of its divisors is an integer number (24462540).

Almost surely, 2^144328809 is an apocalyptic number.

It is an amenable number.

144328809 is a deficient number, since it is larger than the sum of its proper divisors (51371511).

144328809 is an equidigital number, since it uses as much as digits as its factorization.

144328809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815479.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 144328809 is about 12013.6925630715. The cubic root of 144328809 is about 524.5469215745.

The spelling of 144328809 in words is "one hundred forty-four million, three hundred twenty-eight thousand, eight hundred nine".