142137984 has 64 divisors (see below), whose sum is σ = 381888000. Its totient is φ = 46835712.

The previous prime is 142137973. The next prime is 142138001. The reversal of 142137984 is 489731241.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 32097 + ... + 36255.

It is an arithmetic number, because the mean of its divisors is an integer number (5967000).

Almost surely, 2^142137984 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 142137984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190944000).

142137984 is an abundant number, since it is smaller than the sum of its proper divisors (239750016).

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

142137984 is an equidigital number, since it uses as much as digits as its factorization.

142137984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4265 (or 4253 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 142137984 is about 11922.1635620386. The cubic root of 142137984 is about 521.8792750866.

The spelling of 142137984 in words is "one hundred forty-two million, one hundred thirty-seven thousand, nine hundred eighty-four".