11197018 has 16 divisors (see below), whose sum is σ = 19664064. Its totient is φ = 4681440.

The previous prime is 11197013. The next prime is 11197019. The reversal of 11197018 is 81079111.

It is not an unprimeable number, because it can be changed into a prime (11197013) 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 7 ways as a sum of consecutive naturals, for example, 9180 + ... + 10327.

It is an arithmetic number, because the mean of its divisors is an integer number (1229004).

Almost surely, 2^11197018 is an apocalyptic number.

11197018 is a deficient number, since it is larger than the sum of its proper divisors (8467046).

11197018 is a wasteful number, since it uses less digits than its factorization.

11197018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19557.

The product of its (nonzero) digits is 504, while the sum is 28.

The square root of 11197018 is about 3346.1945550132. The cubic root of 11197018 is about 223.7179299250.

The spelling of 11197018 in words is "eleven million, one hundred ninety-seven thousand, eighteen".