11148915 has 16 divisors (see below), whose sum is σ = 18777600. Its totient is φ = 5632992.

The previous prime is 11148899. The next prime is 11148947. The reversal of 11148915 is 51984111.

It is a happy number.

It is not a de Polignac number, because 11148915 - 2⁴ = 11148899 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 19275 + ... + 19844.

It is an arithmetic number, because the mean of its divisors is an integer number (1173600).

Almost surely, 2^11148915 is an apocalyptic number.

11148915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11148915 is a deficient number, since it is larger than the sum of its proper divisors (7628685).

11148915 is a wasteful number, since it uses less digits than its factorization.

11148915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39146.

The product of its digits is 1440, while the sum is 30.

The square root of 11148915 is about 3338.9991015273. Note that the first 3 decimals coincide. The cubic root of 11148915 is about 223.3971019112.

The spelling of 11148915 in words is "eleven million, one hundred forty-eight thousand, nine hundred fifteen".