15085385 has 24 divisors (see below), whose sum is σ = 21395520. Its totient is φ = 10178784.

The previous prime is 15085379. The next prime is 15085397. The reversal of 15085385 is 58358051.

It is not a de Polignac number, because 15085385 - 2⁶ = 15085321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 15956 + ... + 16874.

It is an arithmetic number, because the mean of its divisors is an integer number (891480).

Almost surely, 2^15085385 is an apocalyptic number.

It is an amenable number.

15085385 is a deficient number, since it is larger than the sum of its proper divisors (6310135).

15085385 is an equidigital number, since it uses as much as digits as its factorization.

15085385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 35.

The square root of 15085385 is about 3883.9908599275. The cubic root of 15085385 is about 247.0882723611.

The spelling of 15085385 in words is "fifteen million, eighty-five thousand, three hundred eighty-five".