143863 has 4 divisors (see below), whose sum is σ = 144648. Its totient is φ = 143080.

The previous prime is 143833. The next prime is 143873. The reversal of 143863 is 368341.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 368341 = 337 ⋅1093.

It is a cyclic number.

It is not a de Polignac number, because 143863 - 2⁵ = 143831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48 + ... + 538.

It is an arithmetic number, because the mean of its divisors is an integer number (36162).

2¹⁴³⁸⁶³ is an apocalyptic number.

143863 is a deficient number, since it is larger than the sum of its proper divisors (785).

143863 is an equidigital number, since it uses as much as digits as its factorization.

143863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

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

The square root of 143863 is about 379.2927629154. The cubic root of 143863 is about 52.3982003150.

The spelling of 143863 in words is "one hundred forty-three thousand, eight hundred sixty-three".