11097161 has 2 divisors, whose sum is σ = 11097162. Its totient is φ = 11097160.

The previous prime is 11097157. The next prime is 11097187. The reversal of 11097161 is 16179011.

It is an a-pointer prime, because the next prime (11097187) can be obtained adding 11097161 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11095561 + 1600 = 3331^2 + 40^2 .

It is an emirp because it is prime and its reverse (16179011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11097161 - 2² = 11097157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11097161.

It is not a weakly prime, because it can be changed into another prime (11097131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5548580 + 5548581.

It is an arithmetic number, because the mean of its divisors is an integer number (5548581).

Almost surely, 2^11097161 is an apocalyptic number.

It is an amenable number.

11097161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11097161 is an equidigital number, since it uses as much as digits as its factorization.

11097161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 26.

The square root of 11097161 is about 3331.2401594601. The cubic root of 11097161 is about 223.0508909438.

The spelling of 11097161 in words is "eleven million, ninety-seven thousand, one hundred sixty-one".