144028 has 6 divisors (see below), whose sum is σ = 252056. Its totient is φ = 72012.

The previous prime is 144013. The next prime is 144031. The reversal of 144028 is 820441.

It is a junction number, because it is equal to n+sod(n) for n = 143996 and 144014.

It is a congruent number.

It is an unprimeable number.

144028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18000 + ... + 18007.

2¹⁴⁴⁰²⁸ is an apocalyptic number.

It is an amenable number.

144028 is a deficient number, since it is larger than the sum of its proper divisors (108028).

144028 is a wasteful number, since it uses less digits than its factorization.

144028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36011 (or 36009 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 144028 is about 379.5102106663. The cubic root of 144028 is about 52.4182249214.

Adding to 144028 its reverse (820441), we get a palindrome (964469).

The spelling of 144028 in words is "one hundred forty-four thousand, twenty-eight".