11171441 has 2 divisors, whose sum is σ = 11171442. Its totient is φ = 11171440.

The previous prime is 11171437. The next prime is 11171453. The reversal of 11171441 is 14417111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10916416 + 255025 = 3304^2 + 505^2 .

It is an emirp because it is prime and its reverse (14417111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11171441 - 2² = 11171437 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11171401) 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, 5585720 + 5585721.

It is an arithmetic number, because the mean of its divisors is an integer number (5585721).

Almost surely, 2^11171441 is an apocalyptic number.

It is an amenable number.

11171441 is a deficient number, since it is larger than the sum of its proper divisors (1).

11171441 is an equidigital number, since it uses as much as digits as its factorization.

11171441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112, while the sum is 20.

The square root of 11171441 is about 3342.3705659307. The cubic root of 11171441 is about 223.5474560864.

Adding to 11171441 its reverse (14417111), we get a palindrome (25588552).

The spelling of 11171441 in words is "eleven million, one hundred seventy-one thousand, four hundred forty-one".