144071647 has 4 divisors (see below), whose sum is σ = 144101160. Its totient is φ = 144042136.

The previous prime is 144071633. The next prime is 144071671. The reversal of 144071647 is 746170441.

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

It is a cyclic number.

It is not a de Polignac number, because 144071647 - 2¹¹ = 144069599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144071677) 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 in 3 ways as a sum of consecutive naturals, for example, 5497 + ... + 17842.

It is an arithmetic number, because the mean of its divisors is an integer number (36025290).

Almost surely, 2^144071647 is an apocalyptic number.

144071647 is a deficient number, since it is larger than the sum of its proper divisors (29513).

144071647 is an equidigital number, since it uses as much as digits as its factorization.

144071647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29512.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 144071647 is about 12002.9849204271. The cubic root of 144071647 is about 524.2351941779.

The spelling of 144071647 in words is "one hundred forty-four million, seventy-one thousand, six hundred forty-seven".