11194891 has 8 divisors (see below), whose sum is σ = 11883024. Its totient is φ = 10510080.

The previous prime is 11194889. The next prime is 11194949. The reversal of 11194891 is 19849111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11194891 - 2¹ = 11194889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11194861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11271 + ... + 12223.

It is an arithmetic number, because the mean of its divisors is an integer number (1485378).

Almost surely, 2^11194891 is an apocalyptic number.

11194891 is a deficient number, since it is larger than the sum of its proper divisors (688133).

11194891 is an equidigital number, since it uses as much as digits as its factorization.

11194891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661.

The product of its digits is 2592, while the sum is 34.

The square root of 11194891 is about 3345.8767161986. The cubic root of 11194891 is about 223.7037631123.

The spelling of 11194891 in words is "eleven million, one hundred ninety-four thousand, eight hundred ninety-one".