165380245 has 16 divisors (see below), whose sum is σ = 204120000. Its totient is φ = 128579968.

The previous prime is 165380231. The next prime is 165380251. The reversal of 165380245 is 542083561.

It is a cyclic number.

It is not a de Polignac number, because 165380245 - 2⁵ = 165380213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165380245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23106 + ... + 29404.

It is an arithmetic number, because the mean of its divisors is an integer number (12757500).

Almost surely, 2^165380245 is an apocalyptic number.

It is an amenable number.

165380245 is a deficient number, since it is larger than the sum of its proper divisors (38739755).

165380245 is an equidigital number, since it uses as much as digits as its factorization.

165380245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6452.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 165380245 is about 12860.0250777360. The cubic root of 165380245 is about 548.9016593320.

The spelling of 165380245 in words is "one hundred sixty-five million, three hundred eighty thousand, two hundred forty-five".