8139071 has 2 divisors, whose sum is σ = 8139072. Its totient is φ = 8139070.

The previous prime is 8139067. The next prime is 8139113. The reversal of 8139071 is 1709318.

8139071 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8139071 - 2² = 8139067 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8139031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4069535 + 4069536.

It is an arithmetic number, because the mean of its divisors is an integer number (4069536).

Almost surely, 2^8139071 is an apocalyptic number.

8139071 is a deficient number, since it is larger than the sum of its proper divisors (1).

8139071 is an equidigital number, since it uses as much as digits as its factorization.

8139071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 8139071 is about 2852.9057117262. The cubic root of 8139071 is about 201.1522735787.

The spelling of 8139071 in words is "eight million, one hundred thirty-nine thousand, seventy-one".