113871 has 4 divisors (see below), whose sum is σ = 151832. Its totient is φ = 75912.

The previous prime is 113843. The next prime is 113891. The reversal of 113871 is 178311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 113871 - 2⁹ = 113359 is a prime.

It is a D-number.

It is a Duffinian number.

113871 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113891) 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, 18976 + ... + 18981.

It is an arithmetic number, because the mean of its divisors is an integer number (37958).

2¹¹³⁸⁷¹ is an apocalyptic number.

113871 is a deficient number, since it is larger than the sum of its proper divisors (37961).

113871 is an equidigital number, since it uses as much as digits as its factorization.

113871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37960.

The product of its digits is 168, while the sum is 21.

The square root of 113871 is about 337.4477737369. The cubic root of 113871 is about 48.4697795935.

The spelling of 113871 in words is "one hundred thirteen thousand, eight hundred seventy-one".