144728 has 16 divisors (see below), whose sum is σ = 276000. Its totient is φ = 71136.

The previous prime is 144719. The next prime is 144731. The reversal of 144728 is 827441.

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 144697 and 144706.

It is a congruent number.

It is an unprimeable number.

144728 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 in 3 ways as a sum of consecutive naturals, for example, 518 + ... + 746.

It is an arithmetic number, because the mean of its divisors is an integer number (17250).

2¹⁴⁴⁷²⁸ is an apocalyptic number.

It is an amenable number.

144728 is a deficient number, since it is larger than the sum of its proper divisors (131272).

144728 is a wasteful number, since it uses less digits than its factorization.

144728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 310 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 144728 is about 380.4313341459. The cubic root of 144728 is about 52.5030081421.

The spelling of 144728 in words is "one hundred forty-four thousand, seven hundred twenty-eight".