13085385 has 16 divisors (see below), whose sum is σ = 21002496. Its totient is φ = 6956928.

The previous prime is 13085381. The next prime is 13085389. The reversal of 13085385 is 58358031.

It is an interprime number because it is at equal distance from previous prime (13085381) and next prime (13085389).

It is not a de Polignac number, because 13085385 - 2² = 13085381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13085381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4317 + ... + 6693.

It is an arithmetic number, because the mean of its divisors is an integer number (1312656).

Almost surely, 2^13085385 is an apocalyptic number.

13085385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13085385 is a deficient number, since it is larger than the sum of its proper divisors (7917111).

13085385 is a wasteful number, since it uses less digits than its factorization.

13085385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 13085385 is about 3617.3726653470. The cubic root of 13085385 is about 235.6471373732.

The spelling of 13085385 in words is "thirteen million, eighty-five thousand, three hundred eighty-five".