11575217 has 2 divisors, whose sum is σ = 11575218. Its totient is φ = 11575216.

The previous prime is 11575133. The next prime is 11575219. The reversal of 11575217 is 71257511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11262736 + 312481 = 3356^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 11575217 - 2⁸ = 11574961 is a prime.

Together with 11575219, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11575217.

It is not a weakly prime, because it can be changed into another prime (11575219) by changing a digit.

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 as a sum of consecutive naturals, namely, 5787608 + 5787609.

It is an arithmetic number, because the mean of its divisors is an integer number (5787609).

Almost surely, 2^11575217 is an apocalyptic number.

It is an amenable number.

11575217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11575217 is an equidigital number, since it uses as much as digits as its factorization.

11575217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2450, while the sum is 29.

The square root of 11575217 is about 3402.2370581722. The cubic root of 11575217 is about 226.2089135123.

The spelling of 11575217 in words is "eleven million, five hundred seventy-five thousand, two hundred seventeen".