191006 has 8 divisors (see below), whose sum is σ = 293304. Its totient is φ = 93240.

The previous prime is 190997. The next prime is 191021. The reversal of 191006 is 600191.

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

It is a congruent number.

It is an unprimeable number.

191006 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025 + ... + 1196.

It is an arithmetic number, because the mean of its divisors is an integer number (36663).

2¹⁹¹⁰⁰⁶ is an apocalyptic number.

191006 is a deficient number, since it is larger than the sum of its proper divisors (102298).

191006 is a wasteful number, since it uses less digits than its factorization.

191006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 191006 is about 437.0423320458. The cubic root of 191006 is about 57.5902552316.

Adding to 191006 its reverse (600191), we get a palindrome (791197).

The spelling of 191006 in words is "one hundred ninety-one thousand, six".