181082227 has 2 divisors, whose sum is σ = 181082228. Its totient is φ = 181082226.

The previous prime is 181082201. The next prime is 181082257. The reversal of 181082227 is 722280181.

181082227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-181082227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (181082257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90541113 + 90541114.

It is an arithmetic number, because the mean of its divisors is an integer number (90541114).

Almost surely, 2^181082227 is an apocalyptic number.

181082227 is a deficient number, since it is larger than the sum of its proper divisors (1).

181082227 is an equidigital number, since it uses as much as digits as its factorization.

181082227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 181082227 is about 13456.6796424675. The cubic root of 181082227 is about 565.7509288391.

The spelling of 181082227 in words is "one hundred eighty-one million, eighty-two thousand, two hundred twenty-seven".