11612191 has 8 divisors (see below), whose sum is σ = 12008000. Its totient is φ = 11220768.

The previous prime is 11612147. The next prime is 11612201. The reversal of 11612191 is 19121611.

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

It is not a de Polignac number, because 11612191 - 2¹⁵ = 11579423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11612101) 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, 4810 + ... + 6808.

It is an arithmetic number, because the mean of its divisors is an integer number (1501000).

Almost surely, 2^11612191 is an apocalyptic number.

11612191 is a deficient number, since it is larger than the sum of its proper divisors (395809).

11612191 is a wasteful number, since it uses less digits than its factorization.

11612191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193.

The product of its digits is 108, while the sum is 22.

The square root of 11612191 is about 3407.6665036356. Note that the first 3 decimals coincide. The cubic root of 11612191 is about 226.4495125659.

The spelling of 11612191 in words is "eleven million, six hundred twelve thousand, one hundred ninety-one".