104200012139 has 4 divisors (see below), whose sum is σ = 105455434056. Its totient is φ = 102944590224.

The previous prime is 104200012129. The next prime is 104200012141. The reversal of 104200012139 is 931210002401.

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-104200012139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104200012129) 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, 627710834 + ... + 627710999.

It is an arithmetic number, because the mean of its divisors is an integer number (26363858514).

Almost surely, 2^104200012139 is an apocalyptic number.

104200012139 is a deficient number, since it is larger than the sum of its proper divisors (1255421917).

104200012139 is an equidigital number, since it uses as much as digits as its factorization.

104200012139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255421916.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 104200012139 in words is "one hundred four billion, two hundred million, twelve thousand, one hundred thirty-nine".