27108131 has 2 divisors, whose sum is σ = 27108132. Its totient is φ = 27108130.

The previous prime is 27108121. The next prime is 27108157. The reversal of 27108131 is 13180172.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27108131 is a prime.

It is a super-2 number, since 2×27108131² = 1469701532626322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 27108097 and 27108106.

It is not a weakly prime, because it can be changed into another prime (27108101) 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 as a sum of consecutive naturals, namely, 13554065 + 13554066.

It is an arithmetic number, because the mean of its divisors is an integer number (13554066).

Almost surely, 2^27108131 is an apocalyptic number.

27108131 is a deficient number, since it is larger than the sum of its proper divisors (1).

27108131 is an equidigital number, since it uses as much as digits as its factorization.

27108131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 27108131 is about 5206.5469363101. The cubic root of 27108131 is about 300.3999517436.

The spelling of 27108131 in words is "twenty-seven million, one hundred eight thousand, one hundred thirty-one".