165842207 has 2 divisors, whose sum is σ = 165842208. Its totient is φ = 165842206.

The previous prime is 165842153. The next prime is 165842221. The reversal of 165842207 is 702248561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165842207 - 2⁶ = 165842143 is a prime.

It is a super-3 number, since 3×165842207³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165842227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82921103 + 82921104.

It is an arithmetic number, because the mean of its divisors is an integer number (82921104).

Almost surely, 2^165842207 is an apocalyptic number.

165842207 is a deficient number, since it is larger than the sum of its proper divisors (1).

165842207 is an equidigital number, since it uses as much as digits as its factorization.

165842207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 165842207 is about 12877.9737148357. The cubic root of 165842207 is about 549.4122724562.

The spelling of 165842207 in words is "one hundred sixty-five million, eight hundred forty-two thousand, two hundred seven".