329521013 has 8 divisors (see below), whose sum is σ = 349132032. Its totient is φ = 309935296.

The previous prime is 329521007. The next prime is 329521037. The reversal of 329521013 is 310125923.

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

It is a de Polignac number, because none of the positive numbers 2^k-329521013 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 (329521043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24956 + ... + 35802.

It is an arithmetic number, because the mean of its divisors is an integer number (43641504).

Almost surely, 2^329521013 is an apocalyptic number.

It is an amenable number.

329521013 is a deficient number, since it is larger than the sum of its proper divisors (19611019).

329521013 is a wasteful number, since it uses less digits than its factorization.

329521013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12651.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 329521013 is about 18152.7136538866. The cubic root of 329521013 is about 690.7078173802.

Adding to 329521013 its reverse (310125923), we get a palindrome (639646936).

The spelling of 329521013 in words is "three hundred twenty-nine million, five hundred twenty-one thousand, thirteen".