109871 has 8 divisors (see below), whose sum is σ = 121824. Its totient is φ = 98560.

The previous prime is 109859. The next prime is 109873. The reversal of 109871 is 178901.

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

It is a cyclic number.

It is not a de Polignac number, because 109871 - 2⁶ = 109807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251 + ... + 531.

It is an arithmetic number, because the mean of its divisors is an integer number (15228).

2¹⁰⁹⁸⁷¹ is an apocalyptic number.

109871 is a deficient number, since it is larger than the sum of its proper divisors (11953).

109871 is a wasteful number, since it uses less digits than its factorization.

109871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 109871 is about 331.4679471683. The cubic root of 109871 is about 47.8954611483.

The spelling of 109871 in words is "one hundred nine thousand, eight hundred seventy-one".