320495117 has 4 divisors (see below), whose sum is σ = 320581056. Its totient is φ = 320409180.

The previous prime is 320495113. The next prime is 320495177. The reversal of 320495117 is 711594023.

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 320495117 - 2² = 320495113 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 (320495113) 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, 37109 + ... + 44922.

It is an arithmetic number, because the mean of its divisors is an integer number (80145264).

Almost surely, 2^320495117 is an apocalyptic number.

It is an amenable number.

320495117 is a deficient number, since it is larger than the sum of its proper divisors (85939).

320495117 is an equidigital number, since it uses as much as digits as its factorization.

320495117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85938.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 320495117 is about 17902.3774119529. The cubic root of 320495117 is about 684.3429627893.

The spelling of 320495117 in words is "three hundred twenty million, four hundred ninety-five thousand, one hundred seventeen".