320606533 has 8 divisors (see below), whose sum is σ = 345430008. Its totient is φ = 295806144.

The previous prime is 320606501. The next prime is 320606537. The reversal of 320606533 is 335606023.

It can be written as a sum of positive squares in 4 ways, for example, as 44315649 + 276290884 = 6657^2 + 16622^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 320606533 - 2⁵ = 320606501 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 (320606537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32535 + ... + 41227.

It is an arithmetic number, because the mean of its divisors is an integer number (43178751).

Almost surely, 2^320606533 is an apocalyptic number.

It is an amenable number.

320606533 is a deficient number, since it is larger than the sum of its proper divisors (24823475).

320606533 is a wasteful number, since it uses less digits than its factorization.

320606533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11543.

The product of its (nonzero) digits is 9720, while the sum is 28.

The square root of 320606533 is about 17905.4889070363. The cubic root of 320606533 is about 684.4222546077.

The spelling of 320606533 in words is "three hundred twenty million, six hundred six thousand, five hundred thirty-three".