320147 has 4 divisors (see below), whose sum is σ = 321360. Its totient is φ = 318936.

The previous prime is 320143. The next prime is 320149. The reversal of 320147 is 741023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 741023 = 73 ⋅10151.

It is a cyclic number.

It is not a de Polignac number, because 320147 - 2² = 320143 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 320147.

It is not an unprimeable number, because it can be changed into a prime (320141) 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, 23 + ... + 800.

It is an arithmetic number, because the mean of its divisors is an integer number (80340).

2³²⁰¹⁴⁷ is an apocalyptic number.

320147 is a deficient number, since it is larger than the sum of its proper divisors (1213).

320147 is an equidigital number, since it uses as much as digits as its factorization.

320147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 320147 is about 565.8153409020. The cubic root of 320147 is about 68.4095098664.

The spelling of 320147 in words is "three hundred twenty thousand, one hundred forty-seven", and thus it is an iban number.