71303 has 4 divisors (see below), whose sum is σ = 72048. Its totient is φ = 70560.

The previous prime is 71293. The next prime is 71317. The reversal of 71303 is 30317.

It is a happy number.

71303 is nontrivially palindromic in base 14.

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.

It is a cyclic number.

It is not a de Polignac number, because 71303 - 2⁴ = 71287 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 (71333) 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, 203 + ... + 428.

It is an arithmetic number, because the mean of its divisors is an integer number (18012).

2⁷¹³⁰³ is an apocalyptic number.

71303 is a deficient number, since it is larger than the sum of its proper divisors (745).

71303 is a wasteful number, since it uses less digits than its factorization.

71303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744.

The product of its (nonzero) digits is 63, while the sum is 14.

The square root of 71303 is about 267.0262159414. The cubic root of 71303 is about 41.4669984890.

Adding to 71303 its sum of digits (14), we get a palindrome (71317).

Subtracting from 71303 its sum of digits (14), we obtain a square (71289 = 267²).

The spelling of 71303 in words is "seventy-one thousand, three hundred three", and thus it is an iban number.