326513065 has 4 divisors (see below), whose sum is σ = 391815684. Its totient is φ = 261210448.

The previous prime is 326513041. The next prime is 326513069. The reversal of 326513065 is 560315623.

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 233814681 + 92698384 = 15291^2 + 9628^2 .

It is a cyclic number.

It is not a de Polignac number, because 326513065 - 2⁷ = 326512937 is a prime.

It is a super-2 number, since 2×326513065² = 213221563231388450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326513069) 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, 32651302 + ... + 32651311.

It is an arithmetic number, because the mean of its divisors is an integer number (97953921).

Almost surely, 2^326513065 is an apocalyptic number.

It is an amenable number.

326513065 is a deficient number, since it is larger than the sum of its proper divisors (65302619).

326513065 is an equidigital number, since it uses as much as digits as its factorization.

326513065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65302618.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 326513065 is about 18069.6725205522. The cubic root of 326513065 is about 688.5997402787.

Adding to 326513065 its reverse (560315623), we get a palindrome (886828688).

The spelling of 326513065 in words is "three hundred twenty-six million, five hundred thirteen thousand, sixty-five".