11541217 has 4 divisors (see below), whose sum is σ = 11939220. Its totient is φ = 11143216.

The previous prime is 11541209. The next prime is 11541221. The reversal of 11541217 is 71214511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2547216 + 8994001 = 1596^2 + 2999^2 .

It is a cyclic number.

It is not a de Polignac number, because 11541217 - 2³ = 11541209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11541287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198958 + ... + 199015.

It is an arithmetic number, because the mean of its divisors is an integer number (2984805).

Almost surely, 2^11541217 is an apocalyptic number.

It is an amenable number.

11541217 is a deficient number, since it is larger than the sum of its proper divisors (398003).

11541217 is an equidigital number, since it uses as much as digits as its factorization.

11541217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398002.

The product of its digits is 280, while the sum is 22.

The square root of 11541217 is about 3397.2366711785. The cubic root of 11541217 is about 225.9872144071.

Adding to 11541217 its reverse (71214511), we get a palindrome (82755728).

The spelling of 11541217 in words is "eleven million, five hundred forty-one thousand, two hundred seventeen".