165135005 has 16 divisors (see below), whose sum is σ = 228130560. Its totient is φ = 112405632.

The previous prime is 165135001. The next prime is 165135011. The reversal of 165135005 is 500531561.

It is a cyclic number.

It is not a de Polignac number, because 165135005 - 2² = 165135001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165135001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12425 + ... + 22014.

It is an arithmetic number, because the mean of its divisors is an integer number (14258160).

Almost surely, 2^165135005 is an apocalyptic number.

It is an amenable number.

165135005 is a deficient number, since it is larger than the sum of its proper divisors (62995555).

165135005 is a wasteful number, since it uses less digits than its factorization.

165135005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34588.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 165135005 is about 12850.4865666635. The cubic root of 165135005 is about 548.6302056362.

Adding to 165135005 its reverse (500531561), we get a palindrome (665666566).

The spelling of 165135005 in words is "one hundred sixty-five million, one hundred thirty-five thousand, five".