165075379 has 16 divisors (see below), whose sum is σ = 190734336. Its totient is φ = 139946400.

The previous prime is 165075373. The next prime is 165075413. The reversal of 165075379 is 973570561.

It is a cyclic number.

It is not a de Polignac number, because 165075379 - 2¹¹ = 165073331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165075373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415609 + ... + 416005.

It is an arithmetic number, because the mean of its divisors is an integer number (11920896).

Almost surely, 2^165075379 is an apocalyptic number.

165075379 is a deficient number, since it is larger than the sum of its proper divisors (25658957).

165075379 is a wasteful number, since it uses less digits than its factorization.

165075379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906.

The product of its (nonzero) digits is 198450, while the sum is 43.

The square root of 165075379 is about 12848.1663672292. The cubic root of 165075379 is about 548.5641656049.

The spelling of 165075379 in words is "one hundred sixty-five million, seventy-five thousand, three hundred seventy-nine".