11217653 has 2 divisors, whose sum is σ = 11217654. Its totient is φ = 11217652.

The previous prime is 11217617. The next prime is 11217667. The reversal of 11217653 is 35671211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9721924 + 1495729 = 3118^2 + 1223^2 .

It is an emirp because it is prime and its reverse (35671211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11217653 - 2⁶ = 11217589 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11217683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5608826 + 5608827.

It is an arithmetic number, because the mean of its divisors is an integer number (5608827).

Almost surely, 2^11217653 is an apocalyptic number.

It is an amenable number.

11217653 is a deficient number, since it is larger than the sum of its proper divisors (1).

11217653 is an equidigital number, since it uses as much as digits as its factorization.

11217653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 26.

The square root of 11217653 is about 3349.2764890346. The cubic root of 11217653 is about 223.8552756158.

Adding to 11217653 its reverse (35671211), we get a palindrome (46888864).

The spelling of 11217653 in words is "eleven million, two hundred seventeen thousand, six hundred fifty-three".