13385915 has 4 divisors (see below), whose sum is σ = 16063104. Its totient is φ = 10708728.

The previous prime is 13385887. The next prime is 13385917. The reversal of 13385915 is 51958331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13385915 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13385917) 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 3 ways as a sum of consecutive naturals, for example, 1338587 + ... + 1338596.

It is an arithmetic number, because the mean of its divisors is an integer number (4015776).

Almost surely, 2^13385915 is an apocalyptic number.

13385915 is a deficient number, since it is larger than the sum of its proper divisors (2677189).

13385915 is an equidigital number, since it uses as much as digits as its factorization.

13385915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677188.

The product of its digits is 16200, while the sum is 35.

The square root of 13385915 is about 3658.6766733342. The cubic root of 13385915 is about 237.4375237328.

The spelling of 13385915 in words is "thirteen million, three hundred eighty-five thousand, nine hundred fifteen".