143988 has 36 divisors (see below), whose sum is σ = 368928. Its totient is φ = 43680.

The previous prime is 143981. The next prime is 143999. The reversal of 143988 is 889341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143981) by changing a digit.

143988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1993 + ... + 2063.

It is an arithmetic number, because the mean of its divisors is an integer number (10248).

2¹⁴³⁹⁸⁸ 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 143988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184464).

143988 is an abundant number, since it is smaller than the sum of its proper divisors (224940).

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

143988 is a wasteful number, since it uses less digits than its factorization.

143988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 89 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 143988 is about 379.4575075025. The cubic root of 143988 is about 52.4133718763.

The spelling of 143988 in words is "one hundred forty-three thousand, nine hundred eighty-eight".