142003 has 4 divisors (see below), whose sum is σ = 142888. Its totient is φ = 141120.

The previous prime is 141991. The next prime is 142007. The reversal of 142003 is 300241.

142003 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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 300241 = 113 ⋅2657.

It is a cyclic number.

It is not a de Polignac number, because 142003 - 2⁵ = 141971 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (142007) 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, 126 + ... + 547.

It is an arithmetic number, because the mean of its divisors is an integer number (35722).

2¹⁴²⁰⁰³ is an apocalyptic number.

142003 is a deficient number, since it is larger than the sum of its proper divisors (885).

142003 is an equidigital number, since it uses as much as digits as its factorization.

142003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 142003 is about 376.8328541940. The cubic root of 142003 is about 52.1714018618.

Adding to 142003 its reverse (300241), we get a palindrome (442244).

The spelling of 142003 in words is "one hundred forty-two thousand, three", and thus it is an iban number.