11136505 has 4 divisors (see below), whose sum is σ = 13363812. Its totient is φ = 8909200.

The previous prime is 11136497. The next prime is 11136557. The reversal of 11136505 is 50563111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50563111 = 397 ⋅127363.

It can be written as a sum of positive squares in 2 ways, for example, as 1827904 + 9308601 = 1352^2 + 3051^2 .

It is not a de Polignac number, because 11136505 - 2³ = 11136497 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113646 + ... + 1113655.

It is an arithmetic number, because the mean of its divisors is an integer number (3340953).

Almost surely, 2^11136505 is an apocalyptic number.

It is an amenable number.

11136505 is a deficient number, since it is larger than the sum of its proper divisors (2227307).

11136505 is an equidigital number, since it uses as much as digits as its factorization.

11136505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227306.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 11136505 is about 3337.1402427827. The cubic root of 11136505 is about 223.3141824127.

Adding to 11136505 its reverse (50563111), we get a palindrome (61699616).

The spelling of 11136505 in words is "eleven million, one hundred thirty-six thousand, five hundred five".