11197171 has 4 divisors (see below), whose sum is σ = 11237872. Its totient is φ = 11156472.

The previous prime is 11197129. The next prime is 11197181. The reversal of 11197171 is 17179111.

11197171 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17179111 = 47 ⋅365513.

It is a cyclic number.

It is not a de Polignac number, because 11197171 - 2¹³ = 11188979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11197111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19935 + ... + 20488.

It is an arithmetic number, because the mean of its divisors is an integer number (2809468).

Almost surely, 2^11197171 is an apocalyptic number.

11197171 is a deficient number, since it is larger than the sum of its proper divisors (40701).

11197171 is an equidigital number, since it uses as much as digits as its factorization.

11197171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40700.

The product of its digits is 441, while the sum is 28.

The square root of 11197171 is about 3346.2174167259. The cubic root of 11197171 is about 223.7189489072.

The spelling of 11197171 in words is "eleven million, one hundred ninety-seven thousand, one hundred seventy-one".