165135134 has 4 divisors (see below), whose sum is σ = 247702704. Its totient is φ = 82567566.

The previous prime is 165135083. The next prime is 165135151. The reversal of 165135134 is 431531561.

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

It is a super-3 number, since 3×165135134³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 165135097 and 165135106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41283782 + ... + 41283785.

It is an arithmetic number, because the mean of its divisors is an integer number (61925676).

Almost surely, 2^165135134 is an apocalyptic number.

165135134 is a deficient number, since it is larger than the sum of its proper divisors (82567570).

165135134 is an equidigital number, since it uses as much as digits as its factorization.

165135134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82567569.

The product of its digits is 5400, while the sum is 29.

The square root of 165135134 is about 12850.4915859278. The cubic root of 165135134 is about 548.6303484956.

Adding to 165135134 its reverse (431531561), we get a palindrome (596666695).

The spelling of 165135134 in words is "one hundred sixty-five million, one hundred thirty-five thousand, one hundred thirty-four".