47285191 has 2 divisors, whose sum is σ = 47285192. Its totient is φ = 47285190.

The previous prime is 47285153. The next prime is 47285207. The reversal of 47285191 is 19158274.

47285191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47285191 - 2¹¹ = 47283143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47285191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47285101) 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 as a sum of consecutive naturals, namely, 23642595 + 23642596.

It is an arithmetic number, because the mean of its divisors is an integer number (23642596).

Almost surely, 2^47285191 is an apocalyptic number.

47285191 is a deficient number, since it is larger than the sum of its proper divisors (1).

47285191 is an equidigital number, since it uses as much as digits as its factorization.

47285191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 37.

The square root of 47285191 is about 6876.4228345849. The cubic root of 47285191 is about 361.6110690112.

The spelling of 47285191 in words is "forty-seven million, two hundred eighty-five thousand, one hundred ninety-one".