165750243 has 8 divisors (see below), whose sum is σ = 232632000. Its totient is φ = 104684328.

The previous prime is 165750229. The next prime is 165750257. The reversal of 165750243 is 342057561.

165750243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165750229) and next prime (165750257).

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

It is not a de Polignac number, because 165750243 - 2¹³ = 165742051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165750203) 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, 1453893 + ... + 1454006.

It is an arithmetic number, because the mean of its divisors is an integer number (29079000).

Almost surely, 2^165750243 is an apocalyptic number.

165750243 is a deficient number, since it is larger than the sum of its proper divisors (66881757).

165750243 is a wasteful number, since it uses less digits than its factorization.

165750243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907921.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 165750243 is about 12874.4026269183. The cubic root of 165750243 is about 549.3106990120.

The spelling of 165750243 in words is "one hundred sixty-five million, seven hundred fifty thousand, two hundred forty-three".