104118643 has 4 divisors (see below), whose sum is σ = 105825568. Its totient is φ = 102411720.

The previous prime is 104118607. The next prime is 104118647. The reversal of 104118643 is 346811401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346811401 = 5197 ⋅66733.

It is a cyclic number.

It is not a de Polignac number, because 104118643 - 2¹³ = 104110451 is a prime.

It is a super-2 number, since 2×104118643² = 21681383640322898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104118647) 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, 853371 + ... + 853492.

It is an arithmetic number, because the mean of its divisors is an integer number (26456392).

Almost surely, 2^104118643 is an apocalyptic number.

104118643 is a deficient number, since it is larger than the sum of its proper divisors (1706925).

104118643 is an equidigital number, since it uses as much as digits as its factorization.

104118643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706924.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 104118643 is about 10203.8543207947. The cubic root of 104118643 is about 470.4456961249.

The spelling of 104118643 in words is "one hundred four million, one hundred eighteen thousand, six hundred forty-three".