131525132 has 24 divisors (see below), whose sum is σ = 245769216. Its totient is φ = 61438608.
The previous prime is 131525071. The next prime is 131525143. The reversal of 131525132 is 231525131.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is a junction number, because it is equal to n+sod(n) for n = 131525098 and 131525107.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12668 + ... + 20579.
It is an arithmetic number, because the mean of its divisors is an integer number (10240384).
Almost surely, 2131525132 is an apocalyptic number.
It is an amenable number.
131525132 is a deficient number, since it is larger than the sum of its proper divisors (114244084).
131525132 is a wasteful number, since it uses less digits than its factorization.
131525132 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33317 (or 33315 counting only the distinct ones).
The product of its digits is 900, while the sum is 23.
The square root of 131525132 is about 11468.4406961016. The cubic root of 131525132 is about 508.5530329974.
Subtracting 131525132 from its reverse (231525131), we obtain a palindrome (99999999).
The spelling of 131525132 in words is "one hundred thirty-one million, five hundred twenty-five thousand, one hundred thirty-two".
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