144666 has 40 divisors (see below), whose sum is σ = 348480. Its totient is φ = 44712.

The previous prime is 144659. The next prime is 144667. The reversal of 144666 is 666441.

It is a Harshad number since it is a multiple of its sum of digits (27).

144666 is a modest number, since divided by 666 gives 144 as remainder.

It is a plaindrome in base 10.

It is a nialpdrome in base 11.

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 19 ways as a sum of consecutive naturals, for example, 3055 + ... + 3101.

It is an arithmetic number, because the mean of its divisors is an integer number (8712).

2¹⁴⁴⁶⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174240).

144666 is an abundant number, since it is smaller than the sum of its proper divisors (203814).

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

144666 is a wasteful number, since it uses less digits than its factorization.

144666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 71 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 144666 is about 380.3498389641. The cubic root of 144666 is about 52.4955098201.

The spelling of 144666 in words is "one hundred forty-four thousand, six hundred sixty-six".