165140005 has 16 divisors (see below), whose sum is σ = 204632064. Its totient is φ = 127854720.

The previous prime is 165139987. The next prime is 165140011. The reversal of 165140005 is 500041561.

It is not a de Polignac number, because 165140005 - 2⁵ = 165139973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22864 + ... + 29206.

It is an arithmetic number, because the mean of its divisors is an integer number (12789504).

Almost surely, 2^165140005 is an apocalyptic number.

It is an amenable number.

165140005 is a deficient number, since it is larger than the sum of its proper divisors (39492059).

165140005 is a wasteful number, since it uses less digits than its factorization.

165140005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 165140005 is about 12850.6811103536. The cubic root of 165140005 is about 548.6357427689.

Adding to 165140005 its reverse (500041561), we get a palindrome (665181566).

The spelling of 165140005 in words is "one hundred sixty-five million, one hundred forty thousand, five".