320501 has 6 divisors (see below), whose sum is σ = 340770. Its totient is φ = 301376.

The previous prime is 320483. The next prime is 320513. The reversal of 320501 is 105023.

It can be written as a sum of positive squares in 3 ways, for example, as 39601 + 280900 = 199^2 + 530^2 .

It is not a de Polignac number, because 320501 - 2¹⁰ = 319477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320501.

It is not an unprimeable number, because it can be changed into a prime (320521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 266 + ... + 843.

It is an arithmetic number, because the mean of its divisors is an integer number (56795).

2³²⁰⁵⁰¹ is an apocalyptic number.

It is an amenable number.

320501 is a deficient number, since it is larger than the sum of its proper divisors (20269).

320501 is a wasteful number, since it uses less digits than its factorization.

320501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 320501 is about 566.1280773818. The cubic root of 320501 is about 68.4347150024.

Adding to 320501 its reverse (105023), we get a palindrome (425524).

The spelling of 320501 in words is "three hundred twenty thousand, five hundred one".