165167227 has 2 divisors, whose sum is σ = 165167228. Its totient is φ = 165167226.

The previous prime is 165167221. The next prime is 165167251. The reversal of 165167227 is 722761561.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165167227 is a prime.

It is not a weakly prime, because it can be changed into another prime (165167221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82583613 + 82583614.

It is an arithmetic number, because the mean of its divisors is an integer number (82583614).

Almost surely, 2^165167227 is an apocalyptic number.

165167227 is a deficient number, since it is larger than the sum of its proper divisors (1).

165167227 is an equidigital number, since it uses as much as digits as its factorization.

165167227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 37.

The square root of 165167227 is about 12851.7402323576. The cubic root of 165167227 is about 548.6658871740.

The spelling of 165167227 in words is "one hundred sixty-five million, one hundred sixty-seven thousand, two hundred twenty-seven".