104519721 has 8 divisors (see below), whose sum is σ = 141268960. Its totient is φ = 68725152.

The previous prime is 104519707. The next prime is 104519759. The reversal of 104519721 is 127915401.

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

It is not a de Polignac number, because 104519721 - 2¹⁹ = 103995433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104519761) 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, 238411 + ... + 238848.

It is an arithmetic number, because the mean of its divisors is an integer number (17658620).

Almost surely, 2^104519721 is an apocalyptic number.

It is an amenable number.

104519721 is a deficient number, since it is larger than the sum of its proper divisors (36749239).

104519721 is an equidigital number, since it uses as much as digits as its factorization.

104519721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477335.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 104519721 is about 10223.4886902662. The cubic root of 104519721 is about 471.0489939613.

The spelling of 104519721 in words is "one hundred four million, five hundred nineteen thousand, seven hundred twenty-one".