143303 has 4 divisors (see below), whose sum is σ = 146400. Its totient is φ = 140208.

The previous prime is 143291. The next prime is 143329. The reversal of 143303 is 303341.

It is a happy number.

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 143303 - 2⁴ = 143287 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 (143333) 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, 1478 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (36600).

2¹⁴³³⁰³ is an apocalyptic number.

143303 is a deficient number, since it is larger than the sum of its proper divisors (3097).

143303 is an equidigital number, since it uses as much as digits as its factorization.

143303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 143303 is about 378.5538270841. The cubic root of 143303 is about 52.3301236306.

Adding to 143303 its reverse (303341), we get a palindrome (446644).

The spelling of 143303 in words is "one hundred forty-three thousand, three hundred three", and thus it is an iban number.