165833393 has 4 divisors (see below), whose sum is σ = 180909168. Its totient is φ = 150757620.

The previous prime is 165833383. The next prime is 165833401. The reversal of 165833393 is 393338561.

165833393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 165833393 - 2⁴ = 165833377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165833393.

It is not an unprimeable number, because it can be changed into a prime (165833303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7537871 + ... + 7537892.

It is an arithmetic number, because the mean of its divisors is an integer number (45227292).

Almost surely, 2^165833393 is an apocalyptic number.

It is an amenable number.

165833393 is a deficient number, since it is larger than the sum of its proper divisors (15075775).

165833393 is a wasteful number, since it uses less digits than its factorization.

165833393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15075774.

The product of its digits is 174960, while the sum is 41.

The square root of 165833393 is about 12877.6314980667. The cubic root of 165833393 is about 549.4025390965.

The spelling of 165833393 in words is "one hundred sixty-five million, eight hundred thirty-three thousand, three hundred ninety-three".