131157 has 24 divisors (see below), whose sum is σ = 218400. Its totient is φ = 75168.
The previous prime is 131149. The next prime is 131171. The reversal of 131157 is 751131.
It is a happy number.
It is not a de Polignac number, because 131157 - 23 = 131149 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131357) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2194 + ... + 2252.
It is an arithmetic number, because the mean of its divisors is an integer number (9100).
2131157 is an apocalyptic number.
It is an amenable number.
131157 is a deficient number, since it is larger than the sum of its proper divisors (87243).
131157 is a wasteful number, since it uses less digits than its factorization.
131157 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97 (or 94 counting only the distinct ones).
The product of its digits is 105, while the sum is 18.
The square root of 131157 is about 362.1560437160. The cubic root of 131157 is about 50.8078118476.
Adding to 131157 its reverse (751131), we get a palindrome (882288).
The spelling of 131157 in words is "one hundred thirty-one thousand, one hundred fifty-seven".
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