11385915 has 16 divisors (see below), whose sum is σ = 18475776. Its totient is φ = 5986400.

The previous prime is 11385901. The next prime is 11385917. The reversal of 11385915 is 51958311.

It is not a de Polignac number, because 11385915 - 2⁹ = 11385403 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11385917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4281 + ... + 6410.

It is an arithmetic number, because the mean of its divisors is an integer number (1154736).

Almost surely, 2^11385915 is an apocalyptic number.

11385915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11385915 is a deficient number, since it is larger than the sum of its proper divisors (7089861).

11385915 is a wasteful number, since it uses less digits than its factorization.

11385915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10770.

The product of its digits is 5400, while the sum is 33.

The square root of 11385915 is about 3374.3021500749. The cubic root of 11385915 is about 224.9689833788.

The spelling of 11385915 in words is "eleven million, three hundred eighty-five thousand, nine hundred fifteen".