80109165 has 32 divisors (see below), whose sum is σ = 134812800. Its totient is φ = 40561920.

The previous prime is 80109163. The next prime is 80109173. The reversal of 80109165 is 56190108.

It is a happy number.

It is not a de Polignac number, because 80109165 - 2¹ = 80109163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80109163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25026 + ... + 28044.

It is an arithmetic number, because the mean of its divisors is an integer number (4212900).

Almost surely, 2^80109165 is an apocalyptic number.

It is an amenable number.

80109165 is a deficient number, since it is larger than the sum of its proper divisors (54703635).

80109165 is a wasteful number, since it uses less digits than its factorization.

80109165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 80109165 is about 8950.3723386237. The cubic root of 80109165 is about 431.0828396458.

The spelling of 80109165 in words is "eighty million, one hundred nine thousand, one hundred sixty-five".