104521505 has 16 divisors (see below), whose sum is σ = 140168448. Its totient is φ = 74160000.

The previous prime is 104521463. The next prime is 104521507. The reversal of 104521505 is 505125401.

It is a happy number.

It is not a de Polignac number, because 104521505 - 2⁶ = 104521441 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 20921 + ... + 25430.

It is an arithmetic number, because the mean of its divisors is an integer number (8760528).

Almost surely, 2^104521505 is an apocalyptic number.

It is an amenable number.

104521505 is a deficient number, since it is larger than the sum of its proper divisors (35646943).

104521505 is a wasteful number, since it uses less digits than its factorization.

104521505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46408.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 104521505 is about 10223.5759399537. The cubic root of 104521505 is about 471.0516739870.

Adding to 104521505 its reverse (505125401), we get a palindrome (609646906).

The spelling of 104521505 in words is "one hundred four million, five hundred twenty-one thousand, five hundred five".