320245453 has 4 divisors (see below), whose sum is σ = 349358688. Its totient is φ = 291132220.

The previous prime is 320245441. The next prime is 320245459. The reversal of 320245453 is 354542023.

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 320245453 - 2¹⁷ = 320114381 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 (320245459) 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, 14556601 + ... + 14556622.

It is an arithmetic number, because the mean of its divisors is an integer number (87339672).

Almost surely, 2^320245453 is an apocalyptic number.

It is an amenable number.

320245453 is a deficient number, since it is larger than the sum of its proper divisors (29113235).

320245453 is a wasteful number, since it uses less digits than its factorization.

320245453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29113234.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 320245453 is about 17895.4031248251. The cubic root of 320245453 is about 684.1652167782.

Adding to 320245453 its reverse (354542023), we get a palindrome (674787476).

The spelling of 320245453 in words is "three hundred twenty million, two hundred forty-five thousand, four hundred fifty-three".