8126139 has 16 divisors (see below), whose sum is σ = 12427520. Its totient is φ = 4626720.

The previous prime is 8126137. The next prime is 8126143. The reversal of 8126139 is 9316218.

It is not a de Polignac number, because 8126139 - 2¹ = 8126137 is a prime.

8126139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8126137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7449 + ... + 8469.

It is an arithmetic number, because the mean of its divisors is an integer number (776720).

Almost surely, 2^8126139 is an apocalyptic number.

8126139 is a deficient number, since it is larger than the sum of its proper divisors (4301381).

8126139 is a wasteful number, since it uses less digits than its factorization.

8126139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410.

The product of its digits is 2592, while the sum is 30.

The square root of 8126139 is about 2850.6383495631. The cubic root of 8126139 is about 201.0456815554.

The spelling of 8126139 in words is "eight million, one hundred twenty-six thousand, one hundred thirty-nine".