104121619 has 12 divisors (see below), whose sum is σ = 123940344. Its totient is φ = 87169824.

The previous prime is 104121569. The next prime is 104121623. The reversal of 104121619 is 916121401.

It is not a de Polignac number, because 104121619 - 2¹¹ = 104119571 is a prime.

It is a super-2 number, since 2×104121619² = 21682623086362322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104121593 and 104121602.

It is not an unprimeable number, because it can be changed into a prime (104121659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22602 + ... + 26815.

It is an arithmetic number, because the mean of its divisors is an integer number (10328362).

Almost surely, 2^104121619 is an apocalyptic number.

104121619 is a deficient number, since it is larger than the sum of its proper divisors (19818725).

104121619 is an equidigital number, since it uses as much as digits as its factorization.

104121619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49474 (or 49467 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 104121619 is about 10204.0001470012. Note that the first 3 decimals coincide. The cubic root of 104121619 is about 470.4501782971.

The spelling of 104121619 in words is "one hundred four million, one hundred twenty-one thousand, six hundred nineteen".