27065161 has 2 divisors, whose sum is σ = 27065162. Its totient is φ = 27065160.

The previous prime is 27065153. The next prime is 27065179. The reversal of 27065161 is 16156072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19855936 + 7209225 = 4456^2 + 2685^2 .

It is a cyclic number.

It is not a de Polignac number, because 27065161 - 2³ = 27065153 is a prime.

It is not a weakly prime, because it can be changed into another prime (27065141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13532580 + 13532581.

It is an arithmetic number, because the mean of its divisors is an integer number (13532581).

Almost surely, 2^27065161 is an apocalyptic number.

It is an amenable number.

27065161 is a deficient number, since it is larger than the sum of its proper divisors (1).

27065161 is an equidigital number, since it uses as much as digits as its factorization.

27065161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 27065161 is about 5202.4187643826. The cubic root of 27065161 is about 300.2411431517.

The spelling of 27065161 in words is "twenty-seven million, sixty-five thousand, one hundred sixty-one".