11564117 has 4 divisors (see below), whose sum is σ = 11571756. Its totient is φ = 11556480.

The previous prime is 11564107. The next prime is 11564129. The reversal of 11564117 is 71146511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8145316 + 3418801 = 2854^2 + 1849^2 .

It is a cyclic number.

It is not a de Polignac number, because 11564117 - 2¹⁸ = 11301973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11564107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698 + ... + 4859.

It is an arithmetic number, because the mean of its divisors is an integer number (2892939).

Almost surely, 2^11564117 is an apocalyptic number.

It is an amenable number.

11564117 is a deficient number, since it is larger than the sum of its proper divisors (7639).

11564117 is an equidigital number, since it uses as much as digits as its factorization.

11564117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638.

The product of its digits is 840, while the sum is 26.

The square root of 11564117 is about 3400.6053872803. The cubic root of 11564117 is about 226.1365830619.

The spelling of 11564117 in words is "eleven million, five hundred sixty-four thousand, one hundred seventeen".