142808128 has 28 divisors (see below), whose sum is σ = 284330140. Its totient is φ = 71165952.

The previous prime is 142808089. The next prime is 142808167. The reversal of 142808128 is 821808241.

It is an interprime number because it is at equal distance from previous prime (142808089) and next prime (142808167).

It can be written as a sum of positive squares in 2 ways, for example, as 32809984 + 109998144 = 5728^2 + 10488^2 .

It is a super-2 number, since 2×142808128² = 40788322845728768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142808093 and 142808102.

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 in 3 ways as a sum of consecutive naturals, for example, 16468 + ... + 23596.

Almost surely, 2^142808128 is an apocalyptic number.

It is an amenable number.

142808128 is a deficient number, since it is larger than the sum of its proper divisors (141522012).

142808128 is an equidigital number, since it uses as much as digits as its factorization.

142808128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7454 (or 7444 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 34.

The square root of 142808128 is about 11950.2354788515. The cubic root of 142808128 is about 522.6981649535.

The spelling of 142808128 in words is "one hundred forty-two million, eight hundred eight thousand, one hundred twenty-eight".