8308139 has 8 divisors (see below), whose sum is σ = 9651168. Its totient is φ = 7004160.

The previous prime is 8308133. The next prime is 8308163. The reversal of 8308139 is 9318038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8308139 - 2²⁰ = 7259563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8308133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9302 + ... + 10155.

It is an arithmetic number, because the mean of its divisors is an integer number (1206396).

Almost surely, 2^8308139 is an apocalyptic number.

8308139 is a deficient number, since it is larger than the sum of its proper divisors (1343029).

8308139 is a wasteful number, since it uses less digits than its factorization.

8308139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19525.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 8308139 is about 2882.3842561324. The cubic root of 8308139 is about 202.5355442357.

The spelling of 8308139 in words is "eight million, three hundred eight thousand, one hundred thirty-nine".