11009161 has 8 divisors (see below), whose sum is σ = 11309760. Its totient is φ = 10710672.

The previous prime is 11009153. The next prime is 11009171. The reversal of 11009161 is 16190011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11009161 - 2³ = 11009153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11009171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21375 + ... + 21883.

It is an arithmetic number, because the mean of its divisors is an integer number (1413720).

Almost surely, 2^11009161 is an apocalyptic number.

It is an amenable number.

11009161 is a deficient number, since it is larger than the sum of its proper divisors (300599).

11009161 is an equidigital number, since it uses as much as digits as its factorization.

11009161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 11009161 is about 3318.0055756433. The cubic root of 11009161 is about 222.4597309609.

Adding to 11009161 its reverse (16190011), we get a palindrome (27199172).

The spelling of 11009161 in words is "eleven million, nine thousand, one hundred sixty-one".