144138 has 8 divisors (see below), whose sum is σ = 288288. Its totient is φ = 48044.

The previous prime is 144103. The next prime is 144139. The reversal of 144138 is 831441.

144138 is nontrivially palindromic in base 12.

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

144138 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144138.

It is not an unprimeable number, because it can be changed into a prime (144139) 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, 12006 + ... + 12017.

It is an arithmetic number, because the mean of its divisors is an integer number (36036).

2¹⁴⁴¹³⁸ is an apocalyptic number.

144138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

144138 is a wasteful number, since it uses less digits than its factorization.

144138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24028.

The product of its digits is 384, while the sum is 21.

The square root of 144138 is about 379.6551066429. The cubic root of 144138 is about 52.4315661639.

Adding to 144138 its reverse (831441), we get a palindrome (975579).

It can be divided in two parts, 144 and 138, that added together give a palindrome (282).

The spelling of 144138 in words is "one hundred forty-four thousand, one hundred thirty-eight".