104105520 has 80 divisors (see below), whose sum is σ = 358593120. Its totient is φ = 27760896.

The previous prime is 104105509. The next prime is 104105527. The reversal of 104105520 is 25501401.

104105520 is a `hidden beast` number, since 104 + 10 + 552 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 104105493 and 104105502.

It is not an unprimeable number, because it can be changed into a prime (104105527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21939 + ... + 26258.

It is an arithmetic number, because the mean of its divisors is an integer number (4482414).

Almost surely, 2^104105520 is an apocalyptic number.

104105520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104105520 is an abundant number, since it is smaller than the sum of its proper divisors (254487600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104105520 is a wasteful number, since it uses less digits than its factorization.

104105520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48219 (or 48207 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 104105520 is about 10203.2112592066. The cubic root of 104105520 is about 470.4259304739.

Adding to 104105520 its reverse (25501401), we get a palindrome (129606921).

The spelling of 104105520 in words is "one hundred four million, one hundred five thousand, five hundred twenty".