165683227 has 2 divisors, whose sum is σ = 165683228. Its totient is φ = 165683226.

The previous prime is 165683183. The next prime is 165683233. The reversal of 165683227 is 722386561.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165683227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165683227.

It is not a weakly prime, because it can be changed into another prime (165683327) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82841613 + 82841614.

It is an arithmetic number, because the mean of its divisors is an integer number (82841614).

Almost surely, 2^165683227 is an apocalyptic number.

165683227 is a deficient number, since it is larger than the sum of its proper divisors (1).

165683227 is an equidigital number, since it uses as much as digits as its factorization.

165683227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 165683227 is about 12871.7996799204. The cubic root of 165683227 is about 549.2366567509.

The spelling of 165683227 in words is "one hundred sixty-five million, six hundred eighty-three thousand, two hundred twenty-seven".