143983 has 8 divisors (see below), whose sum is σ = 167552. Its totient is φ = 121176.

The previous prime is 143981. The next prime is 143999. The reversal of 143983 is 389341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143983 - 2¹ = 143981 is a prime.

It is a super-2 number, since 2×143983² = 41462208578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143981) 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, 316 + ... + 622.

It is an arithmetic number, because the mean of its divisors is an integer number (20944).

2¹⁴³⁹⁸³ is an apocalyptic number.

143983 is a deficient number, since it is larger than the sum of its proper divisors (23569).

143983 is an equidigital number, since it uses as much as digits as its factorization.

143983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381.

The product of its digits is 2592, while the sum is 28.

The square root of 143983 is about 379.4509190923. The cubic root of 143983 is about 52.4127651825.

The spelling of 143983 in words is "one hundred forty-three thousand, nine hundred eighty-three".