11270191 has 4 divisors (see below), whose sum is σ = 11306512. Its totient is φ = 11233872.

The previous prime is 11270153. The next prime is 11270209. The reversal of 11270191 is 19107211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11270191 - 2¹⁵ = 11237423 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 (11270101) 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, 17691 + ... + 18316.

It is an arithmetic number, because the mean of its divisors is an integer number (2826628).

Almost surely, 2^11270191 is an apocalyptic number.

11270191 is a deficient number, since it is larger than the sum of its proper divisors (36321).

11270191 is an equidigital number, since it uses as much as digits as its factorization.

11270191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36320.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 11270191 is about 3357.1105135220. The cubic root of 11270191 is about 224.2042076462.

The spelling of 11270191 in words is "eleven million, two hundred seventy thousand, one hundred ninety-one".