165730075 has 24 divisors (see below), whose sum is σ = 238098848. Its totient is φ = 112078080.

The previous prime is 165730073. The next prime is 165730079. The reversal of 165730075 is 570037561.

It is not a de Polignac number, because 165730075 - 2¹ = 165730073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165730075.

It is not an unprimeable number, because it can be changed into a prime (165730073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6289 + ... + 19261.

Almost surely, 2^165730075 is an apocalyptic number.

165730075 is a deficient number, since it is larger than the sum of its proper divisors (72368773).

165730075 is a wasteful number, since it uses less digits than its factorization.

165730075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13063 (or 13058 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 165730075 is about 12873.6193434481. The cubic root of 165730075 is about 549.2884186071.

The spelling of 165730075 in words is "one hundred sixty-five million, seven hundred thirty thousand, seventy-five".