11190191 has 8 divisors (see below), whose sum is σ = 11517264. Its totient is φ = 10866240.

The previous prime is 11190187. The next prime is 11190203. The reversal of 11190191 is 19109111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11190191 - 2² = 11190187 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11190181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7811 + ... + 9131.

It is an arithmetic number, because the mean of its divisors is an integer number (1439658).

Almost surely, 2^11190191 is an apocalyptic number.

11190191 is a deficient number, since it is larger than the sum of its proper divisors (327073).

11190191 is a wasteful number, since it uses less digits than its factorization.

11190191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561.

The product of its (nonzero) digits is 81, while the sum is 23.

The square root of 11190191 is about 3345.1742854446. The cubic root of 11190191 is about 223.6724525541.

The spelling of 11190191 in words is "eleven million, one hundred ninety thousand, one hundred ninety-one".