104715521 has 4 divisors (see below), whose sum is σ = 104736192. Its totient is φ = 104694852.

The previous prime is 104715503. The next prime is 104715571. The reversal of 104715521 is 125517401.

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 104715521 - 2¹⁴ = 104699137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104715571) 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 3 ways as a sum of consecutive naturals, for example, 2996 + ... + 14778.

It is an arithmetic number, because the mean of its divisors is an integer number (26184048).

Almost surely, 2^104715521 is an apocalyptic number.

It is an amenable number.

104715521 is a deficient number, since it is larger than the sum of its proper divisors (20671).

104715521 is an equidigital number, since it uses as much as digits as its factorization.

104715521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20670.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 104715521 is about 10233.0601972235. The cubic root of 104715521 is about 471.3429539869.

The spelling of 104715521 in words is "one hundred four million, seven hundred fifteen thousand, five hundred twenty-one".