71147 has 2 divisors, whose sum is σ = 71148. Its totient is φ = 71146.

The previous prime is 71143. The next prime is 71153. The reversal of 71147 is 74117.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71147 - 2² = 71143 is a prime.

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 71147.

It is not a weakly prime, because it can be changed into another prime (71143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35573 + 35574.

It is an arithmetic number, because the mean of its divisors is an integer number (35574).

2⁷¹¹⁴⁷ is an apocalyptic number.

71147 is a deficient number, since it is larger than the sum of its proper divisors (1).

71147 is an equidigital number, since it uses as much as digits as its factorization.

71147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 196, while the sum is 20.

The square root of 71147 is about 266.7339498452. The cubic root of 71147 is about 41.4367352690.

The spelling of 71147 in words is "seventy-one thousand, one hundred forty-seven", and thus it is an iban number.