27200161 has 2 divisors, whose sum is σ = 27200162. Its totient is φ = 27200160.

The previous prime is 27200141. The next prime is 27200177. The reversal of 27200161 is 16100272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18533025 + 8667136 = 4305^2 + 2944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27200161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27200111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13600080 + 13600081.

It is an arithmetic number, because the mean of its divisors is an integer number (13600081).

Almost surely, 2^27200161 is an apocalyptic number.

It is an amenable number.

27200161 is a deficient number, since it is larger than the sum of its proper divisors (1).

27200161 is an equidigital number, since it uses as much as digits as its factorization.

27200161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 27200161 is about 5215.3773593097. The cubic root of 27200161 is about 300.7395126095.

The spelling of 27200161 in words is "twenty-seven million, two hundred thousand, one hundred sixty-one".