142688056 has 32 divisors (see below), whose sum is σ = 308183040. Its totient is φ = 60667488.

The previous prime is 142688041. The next prime is 142688069. The reversal of 142688056 is 650886241.

It is a congruent number.

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, 2920 + ... + 17143.

It is an arithmetic number, because the mean of its divisors is an integer number (9630720).

Almost surely, 2^142688056 is an apocalyptic number.

It is an amenable number.

142688056 is an abundant number, since it is smaller than the sum of its proper divisors (165494984).

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

142688056 is a wasteful number, since it uses less digits than its factorization.

142688056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20203 (or 20199 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 142688056 is about 11945.2105883488. The cubic root of 142688056 is about 522.5516303154.

The spelling of 142688056 in words is "one hundred forty-two million, six hundred eighty-eight thousand, fifty-six".