147871 has 4 divisors (see below), whose sum is σ = 153000. Its totient is φ = 142744.

The previous prime is 147863. The next prime is 147881. The reversal of 147871 is 178741.

147871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178741 = 47 ⋅3803.

It is a cyclic number.

It is not a de Polignac number, because 147871 - 2³ = 147863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2521 + ... + 2578.

It is an arithmetic number, because the mean of its divisors is an integer number (38250).

2¹⁴⁷⁸⁷¹ is an apocalyptic number.

147871 is a deficient number, since it is larger than the sum of its proper divisors (5129).

147871 is an equidigital number, since it uses as much as digits as its factorization.

147871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128.

The product of its digits is 1568, while the sum is 28.

The square root of 147871 is about 384.5399849170. The cubic root of 147871 is about 52.8803519072.

The spelling of 147871 in words is "one hundred forty-seven thousand, eight hundred seventy-one".