165040134 has 48 divisors (see below), whose sum is σ = 400681728. Its totient is φ = 45102288.

The previous prime is 165040133. The next prime is 165040151. The reversal of 165040134 is 431040561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165040133) 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 23 ways as a sum of consecutive naturals, for example, 5442 + ... + 18965.

It is an arithmetic number, because the mean of its divisors is an integer number (8347536).

Almost surely, 2^165040134 is an apocalyptic number.

165040134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165040134 is an abundant number, since it is smaller than the sum of its proper divisors (235641594).

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

165040134 is a wasteful number, since it uses less digits than its factorization.

165040134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24449 (or 24442 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 165040134 is about 12846.7946975111. The cubic root of 165040134 is about 548.5251217849.

Adding to 165040134 its reverse (431040561), we get a palindrome (596080695).

The spelling of 165040134 in words is "one hundred sixty-five million, forty thousand, one hundred thirty-four".