142163028 has 144 divisors (see below), whose sum is σ = 429345280. Its totient is φ = 38817792.

The previous prime is 142162987. The next prime is 142163039. The reversal of 142163028 is 820361241.

142163028 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 630 + 28 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 142162992 and 142163010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 736500 + ... + 736692.

Almost surely, 2^142163028 is an apocalyptic number.

142163028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142163028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214672640).

142163028 is an abundant number, since it is smaller than the sum of its proper divisors (287182252).

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

142163028 is a wasteful number, since it uses less digits than its factorization.

142163028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 142163028 is about 11923.2138284944. The cubic root of 142163028 is about 521.9099241237.

The spelling of 142163028 in words is "one hundred forty-two million, one hundred sixty-three thousand, twenty-eight".