104191899 has 16 divisors (see below), whose sum is σ = 163891200. Its totient is φ = 57617280.

The previous prime is 104191891. The next prime is 104191907. The reversal of 104191899 is 998191401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (104191891) and next prime (104191907).

It is not a de Polignac number, because 104191899 - 2³ = 104191891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104191899.

It is not an unprimeable number, because it can be changed into a prime (104191891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79374 + ... + 80675.

It is an arithmetic number, because the mean of its divisors is an integer number (10243200).

Almost surely, 2^104191899 is an apocalyptic number.

104191899 is a deficient number, since it is larger than the sum of its proper divisors (59699301).

104191899 is a wasteful number, since it uses less digits than its factorization.

104191899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160090.

The product of its (nonzero) digits is 23328, while the sum is 42.

The square root of 104191899 is about 10207.4433135825. The cubic root of 104191899 is about 470.5560026290.

The spelling of 104191899 in words is "one hundred four million, one hundred ninety-one thousand, eight hundred ninety-nine".