6570139 has 2 divisors, whose sum is σ = 6570140. Its totient is φ = 6570138.

The previous prime is 6570131. The next prime is 6570149. The reversal of 6570139 is 9310756.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6570139 - 2³ = 6570131 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6570139.

It is not a weakly prime, because it can be changed into another prime (6570131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3285069 + 3285070.

It is an arithmetic number, because the mean of its divisors is an integer number (3285070).

Almost surely, 2^6570139 is an apocalyptic number.

6570139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6570139 is an equidigital number, since it uses as much as digits as its factorization.

6570139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 6570139 is about 2563.2282379843. The cubic root of 6570139 is about 187.2944259513.

The spelling of 6570139 in words is "six million, five hundred seventy thousand, one hundred thirty-nine".