124871 has 4 divisors (see below), whose sum is σ = 125712. Its totient is φ = 124032.

The previous prime is 124853. The next prime is 124897. The reversal of 124871 is 178421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 178421 = 67 ⋅2663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124871 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124171) 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, 131 + ... + 516.

It is an arithmetic number, because the mean of its divisors is an integer number (31428).

2¹²⁴⁸⁷¹ is an apocalyptic number.

124871 is a deficient number, since it is larger than the sum of its proper divisors (841).

124871 is an equidigital number, since it uses as much as digits as its factorization.

124871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840.

The product of its digits is 448, while the sum is 23.

The square root of 124871 is about 353.3709099516. The cubic root of 124871 is about 49.9827940798.

The spelling of 124871 in words is "one hundred twenty-four thousand, eight hundred seventy-one".