104555813 has 4 divisors (see below), whose sum is σ = 104582400. Its totient is φ = 104529228.

The previous prime is 104555791. The next prime is 104555819. The reversal of 104555813 is 318555401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 104555813 - 2⁶ = 104555749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 104555813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104555819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6095 + ... + 15692.

It is an arithmetic number, because the mean of its divisors is an integer number (26145600).

Almost surely, 2^104555813 is an apocalyptic number.

It is an amenable number.

104555813 is a deficient number, since it is larger than the sum of its proper divisors (26587).

104555813 is an equidigital number, since it uses as much as digits as its factorization.

104555813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26586.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 104555813 is about 10225.2536887844. The cubic root of 104555813 is about 471.1032074743.

The spelling of 104555813 in words is "one hundred four million, five hundred fifty-five thousand, eight hundred thirteen".