143403 has 8 divisors (see below), whose sum is σ = 205968. Its totient is φ = 88224.

The previous prime is 143401. The next prime is 143413. The reversal of 143403 is 304341.

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

It is not a de Polignac number, because 143403 - 2¹ = 143401 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143403.

It is not an unprimeable number, because it can be changed into a prime (143401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1800 + ... + 1877.

It is an arithmetic number, because the mean of its divisors is an integer number (25746).

2¹⁴³⁴⁰³ is an apocalyptic number.

143403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

143403 is a deficient number, since it is larger than the sum of its proper divisors (62565).

143403 is a wasteful number, since it uses less digits than its factorization.

143403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 143403 is about 378.6858856625. The cubic root of 143403 is about 52.3422931725.

Adding to 143403 its reverse (304341), we get a palindrome (447744).

The spelling of 143403 in words is "one hundred forty-three thousand, four hundred three", and thus it is an iban number.