104123939 has 2 divisors, whose sum is σ = 104123940. Its totient is φ = 104123938.

The previous prime is 104123881. The next prime is 104123953. The reversal of 104123939 is 939321401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104123939 - 2¹⁶ = 104058403 is a prime.

It is not a weakly prime, because it can be changed into another prime (104123639) 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 as a sum of consecutive naturals, namely, 52061969 + 52061970.

It is an arithmetic number, because the mean of its divisors is an integer number (52061970).

Almost surely, 2^104123939 is an apocalyptic number.

104123939 is a deficient number, since it is larger than the sum of its proper divisors (1).

104123939 is an equidigital number, since it uses as much as digits as its factorization.

104123939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 104123939 is about 10204.1138272757. The cubic root of 104123939 is about 470.4536724043.

The spelling of 104123939 in words is "one hundred four million, one hundred twenty-three thousand, nine hundred thirty-nine".