104836931209 has 2 divisors, whose sum is σ = 104836931210. Its totient is φ = 104836931208.

The previous prime is 104836931207. The next prime is 104836931233. The reversal of 104836931209 is 902139638401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74291679225 + 30545251984 = 272565^2 + 174772^2 .

It is a cyclic number.

It is not a de Polignac number, because 104836931209 - 2¹ = 104836931207 is a prime.

Together with 104836931207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (104836931203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52418465604 + 52418465605.

It is an arithmetic number, because the mean of its divisors is an integer number (52418465605).

Almost surely, 2^104836931209 is an apocalyptic number.

It is an amenable number.

104836931209 is a deficient number, since it is larger than the sum of its proper divisors (1).

104836931209 is an equidigital number, since it uses as much as digits as its factorization.

104836931209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 104836931209 in words is "one hundred four billion, eight hundred thirty-six million, nine hundred thirty-one thousand, two hundred nine".