131183 has 4 divisors (see below), whose sum is σ = 141288. Its totient is φ = 121080.
The previous prime is 131171. The next prime is 131203. The reversal of 131183 is 381131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 381131 = 257 ⋅1483.
It is a cyclic number.
It is not a de Polignac number, because 131183 - 28 = 130927 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131113) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5033 + ... + 5058.
It is an arithmetic number, because the mean of its divisors is an integer number (35322).
2131183 is an apocalyptic number.
131183 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
131183 is a deficient number, since it is larger than the sum of its proper divisors (10105).
131183 is a wasteful number, since it uses less digits than its factorization.
131183 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10104.
The product of its digits is 72, while the sum is 17.
The square root of 131183 is about 362.1919380660. The cubic root of 131183 is about 50.8111689332.
The spelling of 131183 in words is "one hundred thirty-one thousand, one hundred eighty-three".
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