104445139 has 16 divisors (see below), whose sum is σ = 113467392. Its totient is φ = 95880928.

The previous prime is 104445119. The next prime is 104445167. The reversal of 104445139 is 931544401.

It is a de Polignac number, because none of the positive numbers 2^k-104445139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104445139.

It is not an unprimeable number, because it can be changed into a prime (104445119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56382 + ... + 58204.

It is an arithmetic number, because the mean of its divisors is an integer number (7091712).

Almost surely, 2^104445139 is an apocalyptic number.

104445139 is a deficient number, since it is larger than the sum of its proper divisors (9022253).

104445139 is a wasteful number, since it uses less digits than its factorization.

104445139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 104445139 is about 10219.8404586373. The cubic root of 104445139 is about 470.9369253636.

The spelling of 104445139 in words is "one hundred four million, four hundred forty-five thousand, one hundred thirty-nine".