191190481 has 8 divisors (see below), whose sum is σ = 192628800. Its totient is φ = 189756720.

The previous prime is 191190443. The next prime is 191190509. The reversal of 191190481 is 184091191.

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 191190481 - 2⁹ = 191189969 is a prime.

It is a super-2 number, since 2×191190481² = 73107600050022722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191190401) 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, 151230 + ... + 152488.

It is an arithmetic number, because the mean of its divisors is an integer number (24078600).

Almost surely, 2^191190481 is an apocalyptic number.

It is an amenable number.

191190481 is a deficient number, since it is larger than the sum of its proper divisors (1438319).

191190481 is a wasteful number, since it uses less digits than its factorization.

191190481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279.

The product of its (nonzero) digits is 2592, while the sum is 34.

The square root of 191190481 is about 13827.1646045023. The cubic root of 191190481 is about 576.0879023270.

The spelling of 191190481 in words is "one hundred ninety-one million, one hundred ninety thousand, four hundred eighty-one".