143872 has 20 divisors (see below), whose sum is σ = 288486. Its totient is φ = 71680.

The previous prime is 143833. The next prime is 143873. The reversal of 143872 is 278341.

143872 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in only one way, i.e., 112896 + 30976 = 336^2 + 176^2 .

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (143873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372 + ... + 652.

2¹⁴³⁸⁷² 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 143872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144243).

143872 is an abundant number, since it is smaller than the sum of its proper divisors (144614).

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

143872 is an frugal number, since it uses more digits than its factorization.

143872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 283 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 143872 is about 379.3046269162. The cubic root of 143872 is about 52.3992929610.

The spelling of 143872 in words is "one hundred forty-three thousand, eight hundred seventy-two".