191116481 has 8 divisors (see below), whose sum is σ = 193546080. Its totient is φ = 188696448.

The previous prime is 191116469. The next prime is 191116487. The reversal of 191116481 is 184611191.

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 191116481 - 2⁶ = 191116417 is a prime.

It is a super-2 number, since 2×191116481² = 73051018619646722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191116487) 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, 43190 + ... + 47408.

It is an arithmetic number, because the mean of its divisors is an integer number (24193260).

Almost surely, 2^191116481 is an apocalyptic number.

It is an amenable number.

191116481 is a deficient number, since it is larger than the sum of its proper divisors (2429599).

191116481 is an equidigital number, since it uses as much as digits as its factorization.

191116481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783.

The product of its digits is 1728, while the sum is 32.

The square root of 191116481 is about 13824.4884534655. The cubic root of 191116481 is about 576.0135680719.

The spelling of 191116481 in words is "one hundred ninety-one million, one hundred sixteen thousand, four hundred eighty-one".