326612345 has 4 divisors (see below), whose sum is σ = 391934820. Its totient is φ = 261289872.

The previous prime is 326612329. The next prime is 326612371. The reversal of 326612345 is 543216623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543216623 = 17 ⋅31953919.

It can be written as a sum of positive squares in 2 ways, for example, as 139688761 + 186923584 = 11819^2 + 13672^2 .

It is a cyclic number.

It is not a de Polignac number, because 326612345 - 2⁴ = 326612329 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32661230 + ... + 32661239.

It is an arithmetic number, because the mean of its divisors is an integer number (97983705).

Almost surely, 2^326612345 is an apocalyptic number.

It is an amenable number.

326612345 is a deficient number, since it is larger than the sum of its proper divisors (65322475).

326612345 is an equidigital number, since it uses as much as digits as its factorization.

326612345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65322474.

The product of its digits is 25920, while the sum is 32.

The square root of 326612345 is about 18072.4194561769. The cubic root of 326612345 is about 688.6695253927.

Adding to 326612345 its reverse (543216623), we get a palindrome (869828968).

The spelling of 326612345 in words is "three hundred twenty-six million, six hundred twelve thousand, three hundred forty-five".