320453 has 4 divisors (see below), whose sum is σ = 366240. Its totient is φ = 274668.

The previous prime is 320449. The next prime is 320471. The reversal of 320453 is 354023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320453 - 2² = 320449 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320483) 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, 22883 + ... + 22896.

It is an arithmetic number, because the mean of its divisors is an integer number (91560).

2³²⁰⁴⁵³ is an apocalyptic number.

It is an amenable number.

320453 is a deficient number, since it is larger than the sum of its proper divisors (45787).

320453 is an equidigital number, since it uses as much as digits as its factorization.

320453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45786.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 320453 is about 566.0856825605. The cubic root of 320453 is about 68.4312984449.

Adding to 320453 its reverse (354023), we get a palindrome (674476).

The spelling of 320453 in words is "three hundred twenty thousand, four hundred fifty-three".