142020656 has 40 divisors (see below), whose sum is σ = 285867120. Its totient is φ = 68269824.

The previous prime is 142020647. The next prime is 142020667. The reversal of 142020656 is 656020241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141950 + ... + 142946.

It is an arithmetic number, because the mean of its divisors is an integer number (7146678).

Almost surely, 2^142020656 is an apocalyptic number.

142020656 is a gapful number since it is divisible by the number (16) 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 142020656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142933560).

142020656 is an abundant number, since it is smaller than the sum of its proper divisors (143846464).

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

142020656 is a wasteful number, since it uses less digits than its factorization.

142020656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 142020656 is about 11917.2419628033. The cubic root of 142020656 is about 521.7356402295.

Adding to 142020656 its reverse (656020241), we get a palindrome (798040897).

The spelling of 142020656 in words is "one hundred forty-two million, twenty thousand, six hundred fifty-six".