165167201 has 2 divisors, whose sum is σ = 165167202. Its totient is φ = 165167200.

The previous prime is 165167161. The next prime is 165167221. The reversal of 165167201 is 102761561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86862400 + 78304801 = 9320^2 + 8849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165167201 is a prime.

It is a Chen prime.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82583600 + 82583601.

It is an arithmetic number, because the mean of its divisors is an integer number (82583601).

Almost surely, 2^165167201 is an apocalyptic number.

It is an amenable number.

165167201 is a deficient number, since it is larger than the sum of its proper divisors (1).

165167201 is an equidigital number, since it uses as much as digits as its factorization.

165167201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 165167201 is about 12851.7392208214. The cubic root of 165167201 is about 548.6658583844.

The spelling of 165167201 in words is "one hundred sixty-five million, one hundred sixty-seven thousand, two hundred one".