165063243 has 8 divisors (see below), whose sum is σ = 221562000. Its totient is φ = 109303328.

The previous prime is 165063233. The next prime is 165063247. The reversal of 165063243 is 342360561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165063243 - 2⁵ = 165063211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165063243.

It is not an unprimeable number, because it can be changed into a prime (165063247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184188 + ... + 185081.

It is an arithmetic number, because the mean of its divisors is an integer number (27695250).

Almost surely, 2^165063243 is an apocalyptic number.

165063243 is a deficient number, since it is larger than the sum of its proper divisors (56498757).

165063243 is a wasteful number, since it uses less digits than its factorization.

165063243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369421.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 165063243 is about 12847.6940732569. The cubic root of 165063243 is about 548.5507221750.

The spelling of 165063243 in words is "one hundred sixty-five million, sixty-three thousand, two hundred forty-three".