11113505 has 16 divisors (see below), whose sum is σ = 14753424. Its totient is φ = 7983360.

The previous prime is 11113493. The next prime is 11113507. The reversal of 11113505 is 50531111.

It can be written as a sum of positive squares in 8 ways, for example, as 117649 + 10995856 = 343^2 + 3316^2 .

It is not a de Polignac number, because 11113505 - 2⁴ = 11113489 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (11113507) 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, 95 + ... + 4715.

It is an arithmetic number, because the mean of its divisors is an integer number (922089).

Almost surely, 2^11113505 is an apocalyptic number.

It is an amenable number.

11113505 is a deficient number, since it is larger than the sum of its proper divisors (3639919).

11113505 is a wasteful number, since it uses less digits than its factorization.

11113505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 11113505 is about 3333.6923973276. The cubic root of 11113505 is about 223.1603410243.

Adding to 11113505 its reverse (50531111), we get a palindrome (61644616).

The spelling of 11113505 in words is "eleven million, one hundred thirteen thousand, five hundred five".