6139139 has 2 divisors, whose sum is σ = 6139140. Its totient is φ = 6139138.

The previous prime is 6139123. The next prime is 6139141. The reversal of 6139139 is 9319316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6139139 - 2⁴ = 6139123 is a prime.

It is a super-2 number, since 2×6139139² = 75378055322642, which contains 22 as substring.

Together with 6139141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6139739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3069569 + 3069570.

It is an arithmetic number, because the mean of its divisors is an integer number (3069570).

Almost surely, 2^6139139 is an apocalyptic number.

6139139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6139139 is an equidigital number, since it uses as much as digits as its factorization.

6139139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4374, while the sum is 32.

The square root of 6139139 is about 2477.7285969210. The cubic root of 6139139 is about 183.1059634954.

The spelling of 6139139 in words is "six million, one hundred thirty-nine thousand, one hundred thirty-nine".