144738 has 48 divisors (see below), whose sum is σ = 370656. Its totient is φ = 40320.

The previous prime is 144737. The next prime is 144751. The reversal of 144738 is 837441.

It is a Curzon number.

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144738.

It is not an unprimeable number, because it can be changed into a prime (144731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3345 + ... + 3387.

It is an arithmetic number, because the mean of its divisors is an integer number (7722).

2¹⁴⁴⁷³⁸ is an apocalyptic number.

144738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185328).

144738 is an abundant number, since it is smaller than the sum of its proper divisors (225918).

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

144738 is a wasteful number, since it uses less digits than its factorization.

144738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 76 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 144738 is about 380.4444768951. Note that the first 4 decimals coincide. The cubic root of 144738 is about 52.5042173483.

It can be divided in two parts, 1447 and 38, that added together give a triangular number (1485 = T₅₄).

The spelling of 144738 in words is "one hundred forty-four thousand, seven hundred thirty-eight".