165380107 has 6 divisors (see below), whose sum is σ = 169317492. Its totient is φ = 161532252.

The previous prime is 165380081. The next prime is 165380179. The reversal of 165380107 is 701083561.

It is not a de Polignac number, because 165380107 - 2¹⁹ = 164855819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165380407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42873 + ... + 46570.

It is an arithmetic number, because the mean of its divisors is an integer number (28219582).

Almost surely, 2^165380107 is an apocalyptic number.

165380107 is a deficient number, since it is larger than the sum of its proper divisors (3937385).

165380107 is an frugal number, since it uses more digits than its factorization.

165380107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89529 (or 89486 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 165380107 is about 12860.0197122711. The cubic root of 165380107 is about 548.9015066567.

The spelling of 165380107 in words is "one hundred sixty-five million, three hundred eighty thousand, one hundred seven".