165272201 has 2 divisors, whose sum is σ = 165272202. Its totient is φ = 165272200.

The previous prime is 165272171. The next prime is 165272243. The reversal of 165272201 is 102272561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154878025 + 10394176 = 12445^2 + 3224^2 .

It is a cyclic number.

It is not a de Polignac number, because 165272201 - 2⁶ = 165272137 is a prime.

It is not a weakly prime, because it can be changed into another prime (165272281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82636100 + 82636101.

It is an arithmetic number, because the mean of its divisors is an integer number (82636101).

Almost surely, 2^165272201 is an apocalyptic number.

It is an amenable number.

165272201 is a deficient number, since it is larger than the sum of its proper divisors (1).

165272201 is an equidigital number, since it uses as much as digits as its factorization.

165272201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 165272201 is about 12855.8236220010. The cubic root of 165272201 is about 548.7820996058.

The spelling of 165272201 in words is "one hundred sixty-five million, two hundred seventy-two thousand, two hundred one".