11117405 has 16 divisors (see below), whose sum is σ = 15213744. Its totient is φ = 7726080.

The previous prime is 11117399. The next prime is 11117417. The reversal of 11117405 is 50471111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 75076 + 11042329 = 274^2 + 3323^2 .

It is not a de Polignac number, because 11117405 - 2¹⁰ = 11116381 is a prime.

It is a congruent number.

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, 3926 + ... + 6135.

It is an arithmetic number, because the mean of its divisors is an integer number (950859).

Almost surely, 2^11117405 is an apocalyptic number.

It is an amenable number.

11117405 is a deficient number, since it is larger than the sum of its proper divisors (4096339).

11117405 is a wasteful number, since it uses less digits than its factorization.

11117405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10096.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 11117405 is about 3334.2772830105. The cubic root of 11117405 is about 223.1864421071.

Adding to 11117405 its reverse (50471111), we get a palindrome (61588516).

The spelling of 11117405 in words is "eleven million, one hundred seventeen thousand, four hundred five".