320134513 has 4 divisors (see below), whose sum is σ = 323731620. Its totient is φ = 316537408.

The previous prime is 320134501. The next prime is 320134517. The reversal of 320134513 is 315431023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35605089 + 284529424 = 5967^2 + 16868^2 .

It is a cyclic number.

It is not a de Polignac number, because 320134513 - 2¹³ = 320126321 is a prime.

It is a super-2 number, since 2×320134513² = 204972212827494338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320134517) 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, 1798420 + ... + 1798597.

It is an arithmetic number, because the mean of its divisors is an integer number (80932905).

Almost surely, 2^320134513 is an apocalyptic number.

It is an amenable number.

320134513 is a deficient number, since it is larger than the sum of its proper divisors (3597107).

320134513 is an equidigital number, since it uses as much as digits as its factorization.

320134513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597106.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 320134513 is about 17892.3031776236. The cubic root of 320134513 is about 684.0862044094.

Adding to 320134513 its reverse (315431023), we get a palindrome (635565536).

The spelling of 320134513 in words is "three hundred twenty million, one hundred thirty-four thousand, five hundred thirteen".