320319453 has 4 divisors (see below), whose sum is σ = 427092608. Its totient is φ = 213546300.

The previous prime is 320319451. The next prime is 320319463. The reversal of 320319453 is 354913023.

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 not a de Polignac number, because 320319453 - 2¹ = 320319451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320319453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320319451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53386573 + ... + 53386578.

It is an arithmetic number, because the mean of its divisors is an integer number (106773152).

Almost surely, 2^320319453 is an apocalyptic number.

It is an amenable number.

320319453 is a deficient number, since it is larger than the sum of its proper divisors (106773155).

320319453 is a wasteful number, since it uses less digits than its factorization.

320319453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106773154.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 320319453 is about 17897.4705754752. The cubic root of 320319453 is about 684.2179100342.

The spelling of 320319453 in words is "three hundred twenty million, three hundred nineteen thousand, four hundred fifty-three".