27236161 has 2 divisors, whose sum is σ = 27236162. Its totient is φ = 27236160.

The previous prime is 27236149. The next prime is 27236179. The reversal of 27236161 is 16163272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22505536 + 4730625 = 4744^2 + 2175^2 .

It is a cyclic number.

It is not a de Polignac number, because 27236161 - 2¹¹ = 27234113 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (27336161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13618080 + 13618081.

It is an arithmetic number, because the mean of its divisors is an integer number (13618081).

Almost surely, 2^27236161 is an apocalyptic number.

It is an amenable number.

27236161 is a deficient number, since it is larger than the sum of its proper divisors (1).

27236161 is an equidigital number, since it uses as much as digits as its factorization.

27236161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 27236161 is about 5218.8275503220. The cubic root of 27236161 is about 300.8721325297.

The spelling of 27236161 in words is "twenty-seven million, two hundred thirty-six thousand, one hundred sixty-one".