65099 has 2 divisors, whose sum is σ = 65100. Its totient is φ = 65098.
The previous prime is 65089. The next prime is 65101. The reversal of 65099 is 99056.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-65099 is a prime.
It is a Sophie Germain prime.
Together with 65101, it forms a pair of twin primes.
It is a Chen prime.
It is a plaindrome in base 15.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65099.
It is not a weakly prime, because it can be changed into another prime (65029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a good prime.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32549 + 32550.
It is an arithmetic number, because the mean of its divisors is an integer number (32550).
265099 is an apocalyptic number.
65099 is a deficient number, since it is larger than the sum of its proper divisors (1).
65099 is an equidigital number, since it uses as much as digits as its factorization.
65099 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2430, while the sum is 29.
The square root of 65099 is about 255.1450567814. The cubic root of 65099 is about 40.2276601466.
The spelling of 65099 in words is "sixty-five thousand, ninety-nine".
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