131001 has 8 divisors (see below), whose sum is σ = 188160. Its totient is φ = 80592.
The previous prime is 130987. The next prime is 131009. The reversal of 131001 is 100131.
131001 is nontrivially palindromic in base 14.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131001 - 25 = 130969 is a prime.
It is a super-2 number, since 2×1310012 = 34322524002, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (131009) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1641 + ... + 1718.
It is an arithmetic number, because the mean of its divisors is an integer number (23520).
2131001 is an apocalyptic number.
It is an amenable number.
131001 is a deficient number, since it is larger than the sum of its proper divisors (57159).
131001 is a wasteful number, since it uses less digits than its factorization.
131001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3375.
The product of its (nonzero) digits is 3, while the sum is 6.
The square root of 131001 is about 361.9406028619. The cubic root of 131001 is about 50.7876600114.
Adding to 131001 its reverse (100131), we get a palindrome (231132).
The spelling of 131001 in words is "one hundred thirty-one thousand, one".
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