47161171 has 4 divisors (see below), whose sum is σ = 47500600. Its totient is φ = 46821744.

The previous prime is 47161157. The next prime is 47161207. The reversal of 47161171 is 17116174.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17116174 = 2 ⋅8558087.

It is a cyclic number.

It is not a de Polignac number, because 47161171 - 2¹⁷ = 47030099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47161141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169506 + ... + 169783.

It is an arithmetic number, because the mean of its divisors is an integer number (11875150).

Almost surely, 2^47161171 is an apocalyptic number.

47161171 is a deficient number, since it is larger than the sum of its proper divisors (339429).

47161171 is a wasteful number, since it uses less digits than its factorization.

47161171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339428.

The product of its digits is 1176, while the sum is 28.

The square root of 47161171 is about 6867.3991437807. The cubic root of 47161171 is about 361.2946466852.

The spelling of 47161171 in words is "forty-seven million, one hundred sixty-one thousand, one hundred seventy-one".