130591 has 4 divisors (see below), whose sum is σ = 133672. Its totient is φ = 127512.
The previous prime is 130589. The next prime is 130619. The reversal of 130591 is 195031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 195031 = 101 ⋅1931.
It is a cyclic number.
It is not a de Polignac number, because 130591 - 21 = 130589 is a prime.
It is a Duffinian number.
130591 is a lucky number.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1476 + ... + 1561.
It is an arithmetic number, because the mean of its divisors is an integer number (33418).
2130591 is an apocalyptic number.
130591 is a deficient number, since it is larger than the sum of its proper divisors (3081).
130591 is an equidigital number, since it uses as much as digits as its factorization.
130591 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3080.
The product of its (nonzero) digits is 135, while the sum is 19.
The square root of 130591 is about 361.3737677253. The cubic root of 130591 is about 50.7346204621.
The spelling of 130591 in words is "one hundred thirty thousand, five hundred ninety-one".
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