104278005 has 48 divisors (see below), whose sum is σ = 195577200. Its totient is φ = 51093504.

The previous prime is 104278001. The next prime is 104278019. The reversal of 104278005 is 500872401.

It can be written as a sum of positive squares in 8 ways, for example, as 1580049 + 102697956 = 1257^2 + 10134^2 .

It is not a de Polignac number, because 104278005 - 2² = 104278001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104278005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104278001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 232021 + ... + 232469.

It is an arithmetic number, because the mean of its divisors is an integer number (4074525).

Almost surely, 2^104278005 is an apocalyptic number.

104278005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104278005 is a deficient number, since it is larger than the sum of its proper divisors (91299195).

104278005 is a wasteful number, since it uses less digits than its factorization.

104278005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 104278005 is about 10211.6602469922. The cubic root of 104278005 is about 470.6855921625.

The spelling of 104278005 in words is "one hundred four million, two hundred seventy-eight thousand, five".