104551521 has 8 divisors (see below), whose sum is σ = 139477344. Its totient is φ = 69663360.

The previous prime is 104551511. The next prime is 104551567. The reversal of 104551521 is 125155401.

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

It is not a de Polignac number, because 104551521 - 2⁷ = 104551393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104551491 and 104551500.

It is not an unprimeable number, because it can be changed into a prime (104551511) by changing a digit.

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, 2131 + ... + 14616.

It is an arithmetic number, because the mean of its divisors is an integer number (17434668).

Almost surely, 2^104551521 is an apocalyptic number.

It is an amenable number.

104551521 is a deficient number, since it is larger than the sum of its proper divisors (34925823).

104551521 is a wasteful number, since it uses less digits than its factorization.

104551521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18831.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 104551521 is about 10225.0438140871. The cubic root of 104551521 is about 471.0967611481.

The spelling of 104551521 in words is "one hundred four million, five hundred fifty-one thousand, five hundred twenty-one".