104121143 has 4 divisors (see below), whose sum is σ = 118995600. Its totient is φ = 89246688.

The previous prime is 104121139. The next prime is 104121151. The reversal of 104121143 is 341121401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104121143 - 2² = 104121139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104121113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7437218 + ... + 7437231.

It is an arithmetic number, because the mean of its divisors is an integer number (29748900).

Almost surely, 2^104121143 is an apocalyptic number.

104121143 is a deficient number, since it is larger than the sum of its proper divisors (14874457).

104121143 is an equidigital number, since it uses as much as digits as its factorization.

104121143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14874456.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 104121143 is about 10203.9768227883. The cubic root of 104121143 is about 470.4494613962.

Adding to 104121143 its reverse (341121401), we get a palindrome (445242544).

The spelling of 104121143 in words is "one hundred four million, one hundred twenty-one thousand, one hundred forty-three".