104100405 has 8 divisors (see below), whose sum is σ = 166560672. Its totient is φ = 55520208.

The previous prime is 104100383. The next prime is 104100431. The reversal of 104100405 is 504001401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104100405 - 2¹⁴ = 104084021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 6940027 = 104100405 / (1 + 0 + 4 + 1 + 0 + 0 + 4 + 0 + 5).

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 7 ways as a sum of consecutive naturals, for example, 3469999 + ... + 3470028.

It is an arithmetic number, because the mean of its divisors is an integer number (20820084).

Almost surely, 2^104100405 is an apocalyptic number.

104100405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104100405 is a deficient number, since it is larger than the sum of its proper divisors (62460267).

104100405 is an equidigital number, since it uses as much as digits as its factorization.

104100405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6940035.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 104100405 is about 10202.9605997475. The cubic root of 104100405 is about 470.4182258936.

Adding to 104100405 its reverse (504001401), we get a palindrome (608101806).

The spelling of 104100405 in words is "one hundred four million, one hundred thousand, four hundred five".