143836 has 24 divisors (see below), whose sum is σ = 314496. Its totient is φ = 55920.

The previous prime is 143833. The next prime is 143873. The reversal of 143836 is 638341.

143836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 143836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75 + ... + 541.

It is an arithmetic number, because the mean of its divisors is an integer number (13104).

2¹⁴³⁸³⁶ 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 143836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157248).

143836 is an abundant number, since it is smaller than the sum of its proper divisors (170660).

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

143836 is a wasteful number, since it uses less digits than its factorization.

143836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 487 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 143836 is about 379.2571686864. The cubic root of 143836 is about 52.3949221037.

It can be divided in two parts, 143 and 836, that added together give a palindrome (979).

The spelling of 143836 in words is "one hundred forty-three thousand, eight hundred thirty-six".