140144 has 20 divisors (see below), whose sum is σ = 286440. Its totient is φ = 66240.

The previous prime is 140143. The next prime is 140159. The reversal of 140144 is 441041.

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 140144.

It is not an unprimeable number, because it can be changed into a prime (140143) by changing a digit.

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, 74 + ... + 534.

It is an arithmetic number, because the mean of its divisors is an integer number (14322).

2¹⁴⁰¹⁴⁴ 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 140144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143220).

140144 is an abundant number, since it is smaller than the sum of its proper divisors (146296).

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

140144 is a wasteful number, since it uses less digits than its factorization.

140144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 140144 is about 374.3581173155. The cubic root of 140144 is about 51.9427377551.

Adding to 140144 its reverse (441041), we get a palindrome (581185).

The spelling of 140144 in words is "one hundred forty thousand, one hundred forty-four", and thus it is an iban number.