11891134 has 24 divisors (see below), whose sum is σ = 18943848. Its totient is φ = 5594400.

The previous prime is 11891129. The next prime is 11891153. The reversal of 11891134 is 43119811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117684 + ... + 117784.

It is an arithmetic number, because the mean of its divisors is an integer number (789327).

Almost surely, 2^11891134 is an apocalyptic number.

11891134 is a deficient number, since it is larger than the sum of its proper divisors (7052714).

11891134 is a wasteful number, since it uses less digits than its factorization.

11891134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 183 counting only the distinct ones).

The product of its digits is 864, while the sum is 28.

The square root of 11891134 is about 3448.3523601859. The cubic root of 11891134 is about 228.2484083390.

The spelling of 11891134 in words is "eleven million, eight hundred ninety-one thousand, one hundred thirty-four".