142838500 has 96 divisors (see below), whose sum is σ = 366492672. Its totient is φ = 47606400.

The previous prime is 142838491. The next prime is 142838519. The reversal of 142838500 is 5838241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128949 + ... + 130051.

It is an arithmetic number, because the mean of its divisors is an integer number (3817632).

Almost surely, 2^142838500 is an apocalyptic number.

142838500 is a gapful number since it is divisible by the number (10) 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 142838500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183246336).

142838500 is an abundant number, since it is smaller than the sum of its proper divisors (223654172).

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

142838500 is a wasteful number, since it uses less digits than its factorization.

142838500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 142838500 is about 11951.5061812309. The cubic root of 142838500 is about 522.7352176143.

The spelling of 142838500 in words is "one hundred forty-two million, eight hundred thirty-eight thousand, five hundred".