8000139 has 16 divisors (see below), whose sum is σ = 12584960. Its totient is φ = 4423680.

The previous prime is 8000119. The next prime is 8000141. The reversal of 8000139 is 9310008.

It is not a de Polignac number, because 8000139 - 2¹¹ = 7998091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8000119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5494 + ... + 6795.

It is an arithmetic number, because the mean of its divisors is an integer number (786560).

Almost surely, 2^8000139 is an apocalyptic number.

8000139 is a deficient number, since it is larger than the sum of its proper divisors (4584821).

8000139 is a wasteful number, since it uses less digits than its factorization.

8000139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12330.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 8000139 is about 2828.4516966001. The cubic root of 8000139 is about 200.0011583266.

The spelling of 8000139 in words is "eight million, one hundred thirty-nine", and thus it is an aban number.