6775139 has 4 divisors (see below), whose sum is σ = 7743024. Its totient is φ = 5807256.

The previous prime is 6775121. The next prime is 6775157. The reversal of 6775139 is 9315776.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6775121) and next prime (6775157).

It is not a de Polignac number, because 6775139 - 2⁸ = 6774883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6775169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483932 + ... + 483945.

It is an arithmetic number, because the mean of its divisors is an integer number (1935756).

Almost surely, 2^6775139 is an apocalyptic number.

6775139 is a deficient number, since it is larger than the sum of its proper divisors (967885).

6775139 is an equidigital number, since it uses as much as digits as its factorization.

6775139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967884.

The product of its digits is 39690, while the sum is 38.

The square root of 6775139 is about 2602.9097179887. The cubic root of 6775139 is about 189.2224827906. Note that the first 3 decimals are identical.

The spelling of 6775139 in words is "six million, seven hundred seventy-five thousand, one hundred thirty-nine".