27061 has 2 divisors, whose sum is σ = 27062. Its totient is φ = 27060.
The previous prime is 27059. The next prime is 27067. The reversal of 27061 is 16072.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 18225 + 8836 = 135^2 + 94^2 .
It is a cyclic number.
It is not a de Polignac number, because 27061 - 21 = 27059 is a prime.
Together with 27059, it forms a pair of twin primes.
It is the 165-th Hogben number.
27061 is a lucky number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (27067) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13530 + 13531.
It is an arithmetic number, because the mean of its divisors is an integer number (13531).
227061 is an apocalyptic number.
It is an amenable number.
27061 is a deficient number, since it is larger than the sum of its proper divisors (1).
27061 is an equidigital number, since it uses as much as digits as its factorization.
27061 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 84, while the sum is 16.
The square root of 27061 is about 164.5022796195. The cubic root of 27061 is about 30.0225755997.
The spelling of 27061 in words is "twenty-seven thousand, sixty-one".
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