104555865 has 48 divisors (see below), whose sum is σ = 180368640. Its totient is φ = 51701760.

The previous prime is 104555851. The next prime is 104555881. The reversal of 104555865 is 568555401.

It is not a de Polignac number, because 104555865 - 2²⁰ = 103507289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 385680 + ... + 385950.

It is an arithmetic number, because the mean of its divisors is an integer number (3757680).

Almost surely, 2^104555865 is an apocalyptic number.

104555865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104555865 is a deficient number, since it is larger than the sum of its proper divisors (75812775).

104555865 is a wasteful number, since it uses less digits than its factorization.

104555865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 39.

The square root of 104555865 is about 10225.2562315083. The cubic root of 104555865 is about 471.1032855741.

The spelling of 104555865 in words is "one hundred four million, five hundred fifty-five thousand, eight hundred sixty-five".