191330949 has 8 divisors (see below), whose sum is σ = 255782560. Its totient is φ = 127216656.

The previous prime is 191330947. The next prime is 191330957. The reversal of 191330949 is 949033191.

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

It is not a de Polignac number, because 191330949 - 2¹ = 191330947 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 (191330941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83002 + ... + 85275.

It is an arithmetic number, because the mean of its divisors is an integer number (31972820).

Almost surely, 2^191330949 is an apocalyptic number.

It is an amenable number.

191330949 is a deficient number, since it is larger than the sum of its proper divisors (64451611).

191330949 is a wasteful number, since it uses less digits than its factorization.

191330949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168659.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 191330949 is about 13832.2430935839. The cubic root of 191330949 is about 576.2289520720.

The spelling of 191330949 in words is "one hundred ninety-one million, three hundred thirty thousand, nine hundred forty-nine".