75169 has 2 divisors, whose sum is σ = 75170. Its totient is φ = 75168.
The previous prime is 75167. The next prime is 75181. The reversal of 75169 is 96157.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 67600 + 7569 = 260^2 + 87^2 .
It is an emirp because it is prime and its reverse (96157) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 75169 - 21 = 75167 is a prime.
It is a super-2 number, since 2×751692 = 11300757122, which contains 22 as substring.
Together with 75167, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (75161) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37584 + 37585.
It is an arithmetic number, because the mean of its divisors is an integer number (37585).
275169 is an apocalyptic number.
It is an amenable number.
75169 is a deficient number, since it is larger than the sum of its proper divisors (1).
75169 is an equidigital number, since it uses as much as digits as its factorization.
75169 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1890, while the sum is 28.
The square root of 75169 is about 274.1696555055. The cubic root of 75169 is about 42.2032850853.
It can be divided in two parts, 751 and 69, that added together give a triangular number (820 = T40).
The spelling of 75169 in words is "seventy-five thousand, one hundred sixty-nine".
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