143963 has 4 divisors (see below), whose sum is σ = 151560. Its totient is φ = 136368.

The previous prime is 143953. The next prime is 143971. The reversal of 143963 is 369341.

143963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143963 - 2⁴ = 143947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3770 + ... + 3807.

It is an arithmetic number, because the mean of its divisors is an integer number (37890).

2¹⁴³⁹⁶³ is an apocalyptic number.

143963 is a deficient number, since it is larger than the sum of its proper divisors (7597).

143963 is an equidigital number, since it uses as much as digits as its factorization.

143963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7596.

The product of its digits is 1944, while the sum is 26.

The square root of 143963 is about 379.4245643076. The cubic root of 143963 is about 52.4103382667.

The spelling of 143963 in words is "one hundred forty-three thousand, nine hundred sixty-three".