165675133 has 4 divisors (see below), whose sum is σ = 178419388. Its totient is φ = 152930880.

The previous prime is 165675113. The next prime is 165675151. The reversal of 165675133 is 331576561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74338884 + 91336249 = 8622^2 + 9557^2 .

It is a cyclic number.

It is not a de Polignac number, because 165675133 - 2⁵ = 165675101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165675092 and 165675101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165675113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6372108 + ... + 6372133.

It is an arithmetic number, because the mean of its divisors is an integer number (44604847).

Almost surely, 2^165675133 is an apocalyptic number.

165675133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

165675133 is a deficient number, since it is larger than the sum of its proper divisors (12744255).

165675133 is a wasteful number, since it uses less digits than its factorization.

165675133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12744254.

The product of its digits is 56700, while the sum is 37.

The square root of 165675133 is about 12871.4852678314. The cubic root of 165675133 is about 549.2277127881.

The spelling of 165675133 in words is "one hundred sixty-five million, six hundred seventy-five thousand, one hundred thirty-three".