143856 has 60 divisors (see below), whose sum is σ = 428792. Its totient is φ = 46656.

The previous prime is 143833. The next prime is 143873. The reversal of 143856 is 658341.

143856 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

Its product of digits (2880) is a multiple of the sum of its prime factors (60).

It is a congruent number.

It is an unprimeable number.

143856 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, 3870 + ... + 3906.

2¹⁴³⁸⁵⁶ is an apocalyptic number.

143856 is a gapful number since it is divisible by the number (16) 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 143856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214396).

143856 is an abundant number, since it is smaller than the sum of its proper divisors (284936).

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

143856 is an equidigital number, since it uses as much as digits as its factorization.

143856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 42 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 143856 is about 379.2835351027. The cubic root of 143856 is about 52.3973504478.

It can be divided in two parts, 143 and 856, that added together give a palindrome (999).

The spelling of 143856 in words is "one hundred forty-three thousand, eight hundred fifty-six".