104521345139 has 2 divisors, whose sum is σ = 104521345140. Its totient is φ = 104521345138.

The previous prime is 104521345127. The next prime is 104521345163. The reversal of 104521345139 is 931543125401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104521345139 is a prime.

It is not a weakly prime, because it can be changed into another prime (104521345169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52260672569 + 52260672570.

It is an arithmetic number, because the mean of its divisors is an integer number (52260672570).

Almost surely, 2^104521345139 is an apocalyptic number.

104521345139 is a deficient number, since it is larger than the sum of its proper divisors (1).

104521345139 is an equidigital number, since it uses as much as digits as its factorization.

104521345139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 104521345139 in words is "one hundred four billion, five hundred twenty-one million, three hundred forty-five thousand, one hundred thirty-nine".