165135375 has 64 divisors (see below), whose sum is σ = 308730240. Its totient is φ = 87091200.

The previous prime is 165135361. The next prime is 165135401. The reversal of 165135375 is 573531561.

It is not a de Polignac number, because 165135375 - 2⁵ = 165135343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 381159 + ... + 381591.

It is an arithmetic number, because the mean of its divisors is an integer number (4823910).

Almost surely, 2^165135375 is an apocalyptic number.

165135375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165135375 is a deficient number, since it is larger than the sum of its proper divisors (143594865).

165135375 is a wasteful number, since it uses less digits than its factorization.

165135375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 554 counting only the distinct ones).

The product of its digits is 47250, while the sum is 36.

The square root of 165135375 is about 12850.5009629975. The cubic root of 165135375 is about 548.6306153878.

The spelling of 165135375 in words is "one hundred sixty-five million, one hundred thirty-five thousand, three hundred seventy-five".