165709134 has 24 divisors (see below), whose sum is σ = 360586512. Its totient is φ = 54997920.

The previous prime is 165709133. The next prime is 165709139. The reversal of 165709134 is 431907561.

165709134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165709133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15562 + ... + 23949.

It is an arithmetic number, because the mean of its divisors is an integer number (15024438).

Almost surely, 2^165709134 is an apocalyptic number.

165709134 is an abundant number, since it is smaller than the sum of its proper divisors (194877378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165709134 is a wasteful number, since it uses less digits than its factorization.

165709134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39752 (or 39749 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 165709134 is about 12872.8059878179. The cubic root of 165709134 is about 549.2652823251.

The spelling of 165709134 in words is "one hundred sixty-five million, seven hundred nine thousand, one hundred thirty-four".