104171965 has 12 divisors (see below), whose sum is σ = 131934204. Its totient is φ = 78950016.

The previous prime is 104171959. The next prime is 104171987. The reversal of 104171965 is 569171401.

It can be written as a sum of positive squares in 2 ways, for example, as 34916281 + 69255684 = 5909^2 + 8322^2 .

It is not a de Polignac number, because 104171965 - 2²¹ = 102074813 is a prime.

It is a super-2 number, since 2×104171965² = 21703596583922450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104171965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27052 + ... + 30661.

It is an arithmetic number, because the mean of its divisors is an integer number (10994517).

Almost surely, 2^104171965 is an apocalyptic number.

It is an amenable number.

104171965 is a deficient number, since it is larger than the sum of its proper divisors (27762239).

104171965 is an equidigital number, since it uses as much as digits as its factorization.

104171965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57756 (or 57737 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 104171965 is about 10206.4668225591. The cubic root of 104171965 is about 470.5259917814.

The spelling of 104171965 in words is "one hundred four million, one hundred seventy-one thousand, nine hundred sixty-five".