165065357 has 2 divisors, whose sum is σ = 165065358. Its totient is φ = 165065356.

The previous prime is 165065339. The next prime is 165065377. The reversal of 165065357 is 753560561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164198596 + 866761 = 12814^2 + 931^2 .

It is a cyclic number.

It is not a de Polignac number, because 165065357 - 2⁸ = 165065101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165065357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165065377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82532678 + 82532679.

It is an arithmetic number, because the mean of its divisors is an integer number (82532679).

Almost surely, 2^165065357 is an apocalyptic number.

It is an amenable number.

165065357 is a deficient number, since it is larger than the sum of its proper divisors (1).

165065357 is an equidigital number, since it uses as much as digits as its factorization.

165065357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 165065357 is about 12847.7763445664. The cubic root of 165065357 is about 548.5530639669.

The spelling of 165065357 in words is "one hundred sixty-five million, sixty-five thousand, three hundred fifty-seven".