142028 has 6 divisors (see below), whose sum is σ = 248556. Its totient is φ = 71012.

The previous prime is 142019. The next prime is 142031. The reversal of 142028 is 820241.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 141997 and 142015.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142028.

It is an unprimeable number.

142028 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, 17750 + ... + 17757.

It is an arithmetic number, because the mean of its divisors is an integer number (41426).

2¹⁴²⁰²⁸ is an apocalyptic number.

It is an amenable number.

142028 is a deficient number, since it is larger than the sum of its proper divisors (106528).

142028 is a wasteful number, since it uses less digits than its factorization.

142028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35511 (or 35509 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 142028 is about 376.8660239395. The cubic root of 142028 is about 52.1744633195.

Adding to 142028 its reverse (820241), we get a palindrome (962269).

The spelling of 142028 in words is "one hundred forty-two thousand, twenty-eight".