11217065 has 8 divisors (see below), whose sum is σ = 13492680. Its totient is φ = 8952192.

The previous prime is 11217061. The next prime is 11217091. The reversal of 11217065 is 56071211.

It can be written as a sum of positive squares in 4 ways, for example, as 6620329 + 4596736 = 2573^2 + 2144^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11217065 - 2² = 11217061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11217065.

It is not an unprimeable number, because it can be changed into a prime (11217061) 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 7 ways as a sum of consecutive naturals, for example, 170 + ... + 4739.

It is an arithmetic number, because the mean of its divisors is an integer number (1686585).

Almost surely, 2^11217065 is an apocalyptic number.

It is an amenable number.

11217065 is a deficient number, since it is larger than the sum of its proper divisors (2275615).

11217065 is an equidigital number, since it uses as much as digits as its factorization.

11217065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5371.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 11217065 is about 3349.1887077321. The cubic root of 11217065 is about 223.8513642450.

Adding to 11217065 its reverse (56071211), we get a palindrome (67288276).

The spelling of 11217065 in words is "eleven million, two hundred seventeen thousand, sixty-five".