47101009 has 2 divisors, whose sum is σ = 47101010. Its totient is φ = 47101008.

The previous prime is 47101007. The next prime is 47101013. The reversal of 47101009 is 90010174.

47101009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37859409 + 9241600 = 6153^2 + 3040^2 .

It is a cyclic number.

It is not a de Polignac number, because 47101009 - 2¹ = 47101007 is a prime.

Together with 47101007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (47101001) 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, 23550504 + 23550505.

It is an arithmetic number, because the mean of its divisors is an integer number (23550505).

Almost surely, 2^47101009 is an apocalyptic number.

It is an amenable number.

47101009 is a deficient number, since it is larger than the sum of its proper divisors (1).

47101009 is an equidigital number, since it uses as much as digits as its factorization.

47101009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 47101009 is about 6863.0174850426. The cubic root of 47101009 is about 361.1409506300.

The spelling of 47101009 in words is "forty-seven million, one hundred one thousand, nine".