11197128 has 16 divisors (see below), whose sum is σ = 27992880. Its totient is φ = 3732368.

The previous prime is 11197127. The next prime is 11197129. The reversal of 11197128 is 82179111.

11197128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11197127) and next prime (11197129).

It is a junction number, because it is equal to n+sod(n) for n = 11197095 and 11197104.

It is not an unprimeable number, because it can be changed into a prime (11197127) 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, 233250 + ... + 233297.

It is an arithmetic number, because the mean of its divisors is an integer number (1749555).

Almost surely, 2^11197128 is an apocalyptic number.

It is an amenable number.

11197128 is an abundant number, since it is smaller than the sum of its proper divisors (16795752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11197128 is a wasteful number, since it uses less digits than its factorization.

11197128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466556 (or 466552 counting only the distinct ones).

The product of its digits is 1008, while the sum is 30.

The square root of 11197128 is about 3346.2109915545. The cubic root of 11197128 is about 223.7186625276.

It can be divided in two parts, 11197 and 128, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 11197128 in words is "eleven million, one hundred ninety-seven thousand, one hundred twenty-eight".