142603 has 4 divisors (see below), whose sum is σ = 145080. Its totient is φ = 140128.

The previous prime is 142601. The next prime is 142607. The reversal of 142603 is 306241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306241 = 13 ⋅23557.

It is a cyclic number.

It is not a de Polignac number, because 142603 - 2¹ = 142601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142601) 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, 1150 + ... + 1267.

It is an arithmetic number, because the mean of its divisors is an integer number (36270).

2¹⁴²⁶⁰³ is an apocalyptic number.

142603 is a deficient number, since it is larger than the sum of its proper divisors (2477).

142603 is an equidigital number, since it uses as much as digits as its factorization.

142603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 142603 is about 377.6281239527. The cubic root of 142603 is about 52.2447779096.

Adding to 142603 its reverse (306241), we get a palindrome (448844).

The spelling of 142603 in words is "one hundred forty-two thousand, six hundred three".