320071 has 4 divisors (see below), whose sum is σ = 321552. Its totient is φ = 318592.

The previous prime is 320063. The next prime is 320081. The reversal of 320071 is 170023.

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 320071 - 2³ = 320063 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 (320011) 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, 346 + ... + 871.

It is an arithmetic number, because the mean of its divisors is an integer number (80388).

2³²⁰⁰⁷¹ is an apocalyptic number.

320071 is a deficient number, since it is larger than the sum of its proper divisors (1481).

320071 is a wasteful number, since it uses less digits than its factorization.

320071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 320071 is about 565.7481771955. The cubic root of 320071 is about 68.4040961718.

Adding to 320071 its reverse (170023), we get a palindrome (490094).

The spelling of 320071 in words is "three hundred twenty thousand, seventy-one", and thus it is an iban number.