122871 has 8 divisors (see below), whose sum is σ = 187264. Its totient is φ = 70200.

The previous prime is 122869. The next prime is 122887. The reversal of 122871 is 178221.

122871 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122871 - 2¹ = 122869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5851 = 122871 / (1 + 2 + 2 + 8 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2905 + ... + 2946.

It is an arithmetic number, because the mean of its divisors is an integer number (23408).

2¹²²⁸⁷¹ is an apocalyptic number.

122871 is a deficient number, since it is larger than the sum of its proper divisors (64393).

122871 is an equidigital number, since it uses as much as digits as its factorization.

122871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861.

The product of its digits is 224, while the sum is 21.

The square root of 122871 is about 350.5295993208. The cubic root of 122871 is about 49.7145063029.

The spelling of 122871 in words is "one hundred twenty-two thousand, eight hundred seventy-one".