11552161 has 2 divisors, whose sum is σ = 11552162. Its totient is φ = 11552160.

The previous prime is 11552159. The next prime is 11552213. The reversal of 11552161 is 16125511.

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., 10601536 + 950625 = 3256^2 + 975^2 .

It is an emirp because it is prime and its reverse (16125511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11552161 - 2¹ = 11552159 is a prime.

Together with 11552159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11552131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776080 + 5776081.

It is an arithmetic number, because the mean of its divisors is an integer number (5776081).

Almost surely, 2^11552161 is an apocalyptic number.

It is an amenable number.

11552161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11552161 is an equidigital number, since it uses as much as digits as its factorization.

11552161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 22.

The square root of 11552161 is about 3398.8470103846. The cubic root of 11552161 is about 226.0586229002.

Adding to 11552161 its reverse (16125511), we get a palindrome (27677672).

The spelling of 11552161 in words is "eleven million, five hundred fifty-two thousand, one hundred sixty-one".