320351453 has 4 divisors (see below), whose sum is σ = 320700960. Its totient is φ = 320001948.

The previous prime is 320351413. The next prime is 320351509. The reversal of 320351453 is 354153023.

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, and also an emirpimes, since its reverse is a distinct semiprime: 354153023 = 7 ⋅50593289.

It is a cyclic number.

It is not a de Polignac number, because 320351453 - 2¹⁸ = 320089309 is a prime.

It is a super-2 number, since 2×320351453² = 205250106878422418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320351413) 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, 173375 + ... + 175212.

It is an arithmetic number, because the mean of its divisors is an integer number (80175240).

Almost surely, 2^320351453 is an apocalyptic number.

It is an amenable number.

320351453 is a deficient number, since it is larger than the sum of its proper divisors (349507).

320351453 is an equidigital number, since it uses as much as digits as its factorization.

320351453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349506.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 320351453 is about 17898.3645342249. The cubic root of 320351453 is about 684.2406937936.

The spelling of 320351453 in words is "three hundred twenty million, three hundred fifty-one thousand, four hundred fifty-three".