144471 has 4 divisors (see below), whose sum is σ = 192632. Its totient is φ = 96312.
The previous prime is 144461. The next prime is 144479. The reversal of 144471 is 174441.
144471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174441 = 3 ⋅58147.
It is not a de Polignac number, because 144471 - 25 = 144439 is a prime.
It is a super-3 number, since 3×1444713 = 9046139723397333, which contains 333 as substring.
It is a D-number.
It is a Duffinian number.
144471 is a lucky number.
It is a plaindrome in base 16.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144479) 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, 24076 + ... + 24081.
It is an arithmetic number, because the mean of its divisors is an integer number (48158).
2144471 is an apocalyptic number.
144471 is a deficient number, since it is larger than the sum of its proper divisors (48161).
144471 is an equidigital number, since it uses as much as digits as its factorization.
144471 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48160.
The product of its digits is 448, while the sum is 21.
The square root of 144471 is about 380.0934095719. The cubic root of 144471 is about 52.4719124134.
The spelling of 144471 in words is "one hundred forty-four thousand, four hundred seventy-one", and thus it is an iban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •