144140 has 12 divisors (see below), whose sum is σ = 302736. Its totient is φ = 57648.

The previous prime is 144139. The next prime is 144161. The reversal of 144140 is 41441.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144140.

It is an unprimeable 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, 3584 + ... + 3623.

It is an arithmetic number, because the mean of its divisors is an integer number (25228).

2¹⁴⁴¹⁴⁰ is an apocalyptic number.

144140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144140 is an abundant number, since it is smaller than the sum of its proper divisors (158596).

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

144140 is a wasteful number, since it uses less digits than its factorization.

144140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7216 (or 7214 counting only the distinct ones).

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

The square root of 144140 is about 379.6577406033. The cubic root of 144140 is about 52.4318086691.

Adding to 144140 its reverse (41441), we get a palindrome (185581).

The spelling of 144140 in words is "one hundred forty-four thousand, one hundred forty", and thus it is an iban number.