142128056 has 96 divisors (see below), whose sum is σ = 333648000. Its totient is φ = 55442880.

The previous prime is 142128023. The next prime is 142128061. The reversal of 142128056 is 650821241.

142128056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1022435 + ... + 1022573.

It is an arithmetic number, because the mean of its divisors is an integer number (3475500).

Almost surely, 2^142128056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142128056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166824000).

142128056 is an abundant number, since it is smaller than the sum of its proper divisors (191519944).

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

142128056 is a wasteful number, since it uses less digits than its factorization.

142128056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 142128056 is about 11921.7471873883. The cubic root of 142128056 is about 521.8671241285.

Adding to 142128056 its reverse (650821241), we get a palindrome (792949297).

The spelling of 142128056 in words is "one hundred forty-two million, one hundred twenty-eight thousand, fifty-six".