144664 has 24 divisors (see below), whose sum is σ = 296460. Its totient is φ = 66144.

The previous prime is 144659. The next prime is 144667. The reversal of 144664 is 466441.

It is a nialpdrome in base 11.

It is a congruent number.

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

144664 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 5 ways as a sum of consecutive naturals, for example, 1299 + ... + 1405.

2¹⁴⁴⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148230).

144664 is an abundant number, since it is smaller than the sum of its proper divisors (151796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144664 is a wasteful number, since it uses less digits than its factorization.

144664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 122 counting only the distinct ones).

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

The square root of 144664 is about 380.3472097965. The cubic root of 144664 is about 52.4952679030.

It can be divided in two parts, 144 and 664, that added together give a palindrome (808).

The spelling of 144664 in words is "one hundred forty-four thousand, six hundred sixty-four".