320326133 has 8 divisors (see below), whose sum is σ = 326188128. Its totient is φ = 314511984.

The previous prime is 320326109. The next prime is 320326151. The reversal of 320326133 is 331623023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320326133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320326099 and 320326108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320328133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691 + ... + 25367.

It is an arithmetic number, because the mean of its divisors is an integer number (40773516).

Almost surely, 2^320326133 is an apocalyptic number.

It is an amenable number.

320326133 is a deficient number, since it is larger than the sum of its proper divisors (5861995).

320326133 is a wasteful number, since it uses less digits than its factorization.

320326133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23923.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 320326133 is about 17897.6571930518. The cubic root of 320326133 is about 684.2226662693. Note that the first 3 decimals are identical.

Adding to 320326133 its reverse (331623023), we get a palindrome (651949156).

The spelling of 320326133 in words is "three hundred twenty million, three hundred twenty-six thousand, one hundred thirty-three".