118271 has 4 divisors (see below), whose sum is σ = 119544. Its totient is φ = 117000.

The previous prime is 118259. The next prime is 118273. The reversal of 118271 is 172811.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118271 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 8 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118273) 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, 485 + ... + 686.

It is an arithmetic number, because the mean of its divisors is an integer number (29886).

2¹¹⁸²⁷¹ is an apocalyptic number.

118271 is a deficient number, since it is larger than the sum of its proper divisors (1273).

118271 is a wasteful number, since it uses less digits than its factorization.

118271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272.

The product of its digits is 112, while the sum is 20.

The square root of 118271 is about 343.9055102786. The cubic root of 118271 is about 49.0862011738.

The spelling of 118271 in words is "one hundred eighteen thousand, two hundred seventy-one".