144647 has 8 divisors (see below), whose sum is σ = 159360. Its totient is φ = 130680.

The previous prime is 144629. The next prime is 144659. The reversal of 144647 is 746441.

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 144647 - 2⁶ = 144583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144647.

It is not an unprimeable number, because it can be changed into a prime (144667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272 + ... + 602.

It is an arithmetic number, because the mean of its divisors is an integer number (19920).

2¹⁴⁴⁶⁴⁷ is an apocalyptic number.

144647 is a deficient number, since it is larger than the sum of its proper divisors (14713).

144647 is a wasteful number, since it uses less digits than its factorization.

144647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373.

The product of its digits is 2688, while the sum is 26.

The square root of 144647 is about 380.3248611385. The cubic root of 144647 is about 52.4932115183.

The spelling of 144647 in words is "one hundred forty-four thousand, six hundred forty-seven".