165675241 has 2 divisors, whose sum is σ = 165675242. Its totient is φ = 165675240.

The previous prime is 165675239. The next prime is 165675247. The reversal of 165675241 is 142576561.

It is a happy number.

165675241 is nontrivially palindromic in base 16.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159896025 + 5779216 = 12645^2 + 2404^2 .

It is an emirp because it is prime and its reverse (142576561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165675241 - 2¹ = 165675239 is a prime.

Together with 165675239, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165675241.

It is not a weakly prime, because it can be changed into another prime (165675247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82837620 + 82837621.

It is an arithmetic number, because the mean of its divisors is an integer number (82837621).

Almost surely, 2^165675241 is an apocalyptic number.

It is an amenable number.

165675241 is a deficient number, since it is larger than the sum of its proper divisors (1).

165675241 is an equidigital number, since it uses as much as digits as its factorization.

165675241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 37.

The square root of 165675241 is about 12871.4894631507. The cubic root of 165675241 is about 549.2278321312.

The spelling of 165675241 in words is "one hundred sixty-five million, six hundred seventy-five thousand, two hundred forty-one".