142531928 has 64 divisors (see below), whose sum is σ = 341003520. Its totient is φ = 54230400.

The previous prime is 142531913. The next prime is 142531931. The reversal of 142531928 is 829135241.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23798 + ... + 29178.

It is an arithmetic number, because the mean of its divisors is an integer number (5328180).

Almost surely, 2^142531928 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 142531928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170501760).

142531928 is an abundant number, since it is smaller than the sum of its proper divisors (198471592).

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

142531928 is a wasteful number, since it uses less digits than its factorization.

142531928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5448 (or 5444 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 142531928 is about 11938.6736281716. The cubic root of 142531928 is about 522.3609703124.

The spelling of 142531928 in words is "one hundred forty-two million, five hundred thirty-one thousand, nine hundred twenty-eight".