104042243 has 4 divisors (see below), whose sum is σ = 105295848. Its totient is φ = 102788640.

The previous prime is 104042207. The next prime is 104042287. The reversal of 104042243 is 342240401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104042243 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (104042203) 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 3 ways as a sum of consecutive naturals, for example, 626678 + ... + 626843.

It is an arithmetic number, because the mean of its divisors is an integer number (26323962).

Almost surely, 2^104042243 is an apocalyptic number.

104042243 is a deficient number, since it is larger than the sum of its proper divisors (1253605).

104042243 is an equidigital number, since it uses as much as digits as its factorization.

104042243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253604.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 104042243 is about 10200.1099503878. The cubic root of 104042243 is about 470.3306003556.

Adding to 104042243 its reverse (342240401), we get a palindrome (446282644).

The spelling of 104042243 in words is "one hundred four million, forty-two thousand, two hundred forty-three".