47147 has 2 divisors, whose sum is σ = 47148. Its totient is φ = 47146.

The previous prime is 47143. The next prime is 47149. The reversal of 47147 is 74174.

47147 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 47147 - 2² = 47143 is a prime.

Together with 47149, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₄₈₆₅ and since 47147 and 4865 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (47143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23573 + 23574.

It is an arithmetic number, because the mean of its divisors is an integer number (23574).

2⁴⁷¹⁴⁷ is an apocalyptic number.

47147 is a deficient number, since it is larger than the sum of its proper divisors (1).

47147 is an equidigital number, since it uses as much as digits as its factorization.

47147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 784, while the sum is 23.

The square root of 47147 is about 217.1335994267. The cubic root of 47147 is about 36.1258455759.

The spelling of 47147 in words is "forty-seven thousand, one hundred forty-seven", and thus it is an iban number.