6939137 has 2 divisors, whose sum is σ = 6939138. Its totient is φ = 6939136.

The previous prime is 6939103. The next prime is 6939139. The reversal of 6939137 is 7319396.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6355441 + 583696 = 2521^2 + 764^2 .

It is a cyclic number.

It is not a de Polignac number, because 6939137 - 2²⁰ = 5890561 is a prime.

Together with 6939139, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6939137.

It is not a weakly prime, because it can be changed into another prime (6939139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3469568 + 3469569.

It is an arithmetic number, because the mean of its divisors is an integer number (3469569).

Almost surely, 2^6939137 is an apocalyptic number.

It is an amenable number.

6939137 is a deficient number, since it is larger than the sum of its proper divisors (1).

6939137 is an equidigital number, since it uses as much as digits as its factorization.

6939137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 38.

The square root of 6939137 is about 2634.2241742115. The cubic root of 6939137 is about 190.7370906467.

The spelling of 6939137 in words is "six million, nine hundred thirty-nine thousand, one hundred thirty-seven".