165140107 has 16 divisors (see below), whose sum is σ = 183513600. Its totient is φ = 147347200.

The previous prime is 165140071. The next prime is 165140111. The reversal of 165140107 is 701041561.

It is a happy number.

It is not a de Polignac number, because 165140107 - 2¹¹ = 165138059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165140117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275394 + ... + 275992.

It is an arithmetic number, because the mean of its divisors is an integer number (11469600).

Almost surely, 2^165140107 is an apocalyptic number.

165140107 is a deficient number, since it is larger than the sum of its proper divisors (18373493).

165140107 is a wasteful number, since it uses less digits than its factorization.

165140107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 165140107 is about 12850.6850790143. The cubic root of 165140107 is about 548.6358557253.

Adding to 165140107 its reverse (701041561), we get a palindrome (866181668).

The spelling of 165140107 in words is "one hundred sixty-five million, one hundred forty thousand, one hundred seven".