144347689 has 8 divisors (see below), whose sum is σ = 150210720. Its totient is φ = 138598656.

The previous prime is 144347683. The next prime is 144347699. The reversal of 144347689 is 986743441.

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 144347689 - 2⁵ = 144347657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144347683) 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, 25912 + ... + 30985.

It is an arithmetic number, because the mean of its divisors is an integer number (18776340).

Almost surely, 2^144347689 is an apocalyptic number.

It is an amenable number.

144347689 is a deficient number, since it is larger than the sum of its proper divisors (5863031).

144347689 is an equidigital number, since it uses as much as digits as its factorization.

144347689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56999.

The product of its digits is 580608, while the sum is 46.

The square root of 144347689 is about 12014.4783074422. The cubic root of 144347689 is about 524.5697929937.

The spelling of 144347689 in words is "one hundred forty-four million, three hundred forty-seven thousand, six hundred eighty-nine".