104521508 has 144 divisors (see below), whose sum is σ = 257402880. Its totient is φ = 36578304.

The previous prime is 104521507. The next prime is 104521523. The reversal of 104521508 is 805125401.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (104521507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 822941 + ... + 823067.

It is an arithmetic number, because the mean of its divisors is an integer number (1787520).

Almost surely, 2^104521508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104521508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128701440).

104521508 is an abundant number, since it is smaller than the sum of its proper divisors (152881372).

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

104521508 is a wasteful number, since it uses less digits than its factorization.

104521508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 104521508 is about 10223.5760866734. The cubic root of 104521508 is about 471.0516784938.

Adding to 104521508 its reverse (805125401), we get a palindrome (909646909).

The spelling of 104521508 in words is "one hundred four million, five hundred twenty-one thousand, five hundred eight".