11197197 has 48 divisors (see below), whose sum is σ = 18869760. Its totient is φ = 6577200.

The previous prime is 11197189. The next prime is 11197217. The reversal of 11197197 is 79179111.

It is not a de Polignac number, because 11197197 - 2³ = 11197189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11197117) 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 in 47 ways as a sum of consecutive naturals, for example, 157672 + ... + 157742.

It is an arithmetic number, because the mean of its divisors is an integer number (393120).

Almost surely, 2^11197197 is an apocalyptic number.

It is an amenable number.

11197197 is a deficient number, since it is larger than the sum of its proper divisors (7672563).

11197197 is an equidigital number, since it uses as much as digits as its factorization.

11197197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 144 counting only the distinct ones).

The product of its digits is 3969, while the sum is 36.

The square root of 11197197 is about 3346.2213017073. The cubic root of 11197197 is about 223.7191220667.

The spelling of 11197197 in words is "eleven million, one hundred ninety-seven thousand, one hundred ninety-seven".