113771 has 4 divisors (see below), whose sum is σ = 130032. Its totient is φ = 97512.

The previous prime is 113761. The next prime is 113777. The reversal of 113771 is 177311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177311 = 281 ⋅631.

It is a cyclic number.

It is not a de Polignac number, because 113771 - 2¹⁴ = 97387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113777) 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 3 ways as a sum of consecutive naturals, for example, 8120 + ... + 8133.

It is an arithmetic number, because the mean of its divisors is an integer number (32508).

2¹¹³⁷⁷¹ is an apocalyptic number.

113771 is a deficient number, since it is larger than the sum of its proper divisors (16261).

113771 is an equidigital number, since it uses as much as digits as its factorization.

113771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16260.

The product of its digits is 147, while the sum is 20.

The square root of 113771 is about 337.2995701154. The cubic root of 113771 is about 48.4555869325.

The spelling of 113771 in words is "one hundred thirteen thousand, seven hundred seventy-one".