144646 has 8 divisors (see below), whose sum is σ = 224064. Its totient is φ = 69960.

The previous prime is 144629. The next prime is 144659. The reversal of 144646 is 646441.

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

It is a self number, because there is not a number n which added to its sum of digits gives 144646.

It is a congruent number.

It is an unprimeable number.

144646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105 + ... + 1228.

It is an arithmetic number, because the mean of its divisors is an integer number (28008).

2¹⁴⁴⁶⁴⁶ is an apocalyptic number.

144646 is a deficient number, since it is larger than the sum of its proper divisors (79418).

144646 is a wasteful number, since it uses less digits than its factorization.

144646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366.

The product of its digits is 2304, while the sum is 25.

The square root of 144646 is about 380.3235464706. The cubic root of 144646 is about 52.4930905495.

The spelling of 144646 in words is "one hundred forty-four thousand, six hundred forty-six".