142928 has 10 divisors (see below), whose sum is σ = 276954. Its totient is φ = 71456.

The previous prime is 142907. The next prime is 142939. The reversal of 142928 is 829241.

It can be written as a sum of positive squares in only one way, i.e., 107584 + 35344 = 328^2 + 188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142897 and 142906.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142928.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4451 + ... + 4482.

2¹⁴²⁹²⁸ is an apocalyptic number.

It is an amenable number.

142928 is a deficient number, since it is larger than the sum of its proper divisors (134026).

142928 is an equidigital number, since it uses as much as digits as its factorization.

142928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8941 (or 8935 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 142928 is about 378.0581965783. The cubic root of 142928 is about 52.2844373605.

The spelling of 142928 in words is "one hundred forty-two thousand, nine hundred twenty-eight".