47530191 has 16 divisors (see below), whose sum is σ = 66890240. Its totient is φ = 29937600.

The previous prime is 47530187. The next prime is 47530201. The reversal of 47530191 is 19103574.

47530191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47530191 - 2² = 47530187 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 (47530591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25491 + ... + 27291.

It is an arithmetic number, because the mean of its divisors is an integer number (4180640).

Almost surely, 2^47530191 is an apocalyptic number.

47530191 is a deficient number, since it is larger than the sum of its proper divisors (19360049).

47530191 is a wasteful number, since it uses less digits than its factorization.

47530191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 47530191 is about 6894.2143134660. The cubic root of 47530191 is about 362.2345350921.

The spelling of 47530191 in words is "forty-seven million, five hundred thirty thousand, one hundred ninety-one".