47001161 has 2 divisors, whose sum is σ = 47001162. Its totient is φ = 47001160.

The previous prime is 47001151. The next prime is 47001169. The reversal of 47001161 is 16110074.

47001161 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 can be written as a sum of positive squares in only one way, i.e., 42981136 + 4020025 = 6556^2 + 2005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47001161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47001169) 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, 23500580 + 23500581.

It is an arithmetic number, because the mean of its divisors is an integer number (23500581).

Almost surely, 2^47001161 is an apocalyptic number.

It is an amenable number.

47001161 is a deficient number, since it is larger than the sum of its proper divisors (1).

47001161 is an equidigital number, since it uses as much as digits as its factorization.

47001161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 47001161 is about 6855.7392745057. The cubic root of 47001161 is about 360.8855795122.

The spelling of 47001161 in words is "forty-seven million, one thousand, one hundred sixty-one".