13320915 has 8 divisors (see below), whose sum is σ = 21313488. Its totient is φ = 7104480.

The previous prime is 13320899. The next prime is 13320953. The reversal of 13320915 is 51902331.

It is a happy number.

13320915 is nontrivially palindromic in base 2.

13320915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13320915 - 2⁴ = 13320899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444016 + ... + 444045.

It is an arithmetic number, because the mean of its divisors is an integer number (2664186).

Almost surely, 2^13320915 is an apocalyptic number.

13320915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13320915 is a deficient number, since it is larger than the sum of its proper divisors (7992573).

13320915 is an equidigital number, since it uses as much as digits as its factorization.

13320915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888069.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 13320915 is about 3649.7828702541. The cubic root of 13320915 is about 237.0525796211.

The spelling of 13320915 in words is "thirteen million, three hundred twenty thousand, nine hundred fifteen".