11197138 has 16 divisors (see below), whose sum is σ = 17637120. Its totient is φ = 5324400.

The previous prime is 11197129. The next prime is 11197181. The reversal of 11197138 is 83179111.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

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, 2128 + ... + 5188.

It is an arithmetic number, because the mean of its divisors is an integer number (1102320).

Almost surely, 2^11197138 is an apocalyptic number.

11197138 is a deficient number, since it is larger than the sum of its proper divisors (6439982).

11197138 is a wasteful number, since it uses less digits than its factorization.

11197138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153.

The product of its digits is 1512, while the sum is 31.

The square root of 11197138 is about 3346.2124857815. The cubic root of 11197138 is about 223.7187291276.

The spelling of 11197138 in words is "eleven million, one hundred ninety-seven thousand, one hundred thirty-eight".