6805156 has 6 divisors (see below), whose sum is σ = 11909030. Its totient is φ = 3402576.

The previous prime is 6805121. The next prime is 6805157. The reversal of 6805156 is 6515086.

It can be written as a sum of positive squares in only one way, i.e., 3686400 + 3118756 = 1920^2 + 1766^2 .

It is not an unprimeable number, because it can be changed into a prime (6805157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 850641 + ... + 850648.

Almost surely, 2^6805156 is an apocalyptic number.

It is an amenable number.

6805156 is a deficient number, since it is larger than the sum of its proper divisors (5103874).

6805156 is a wasteful number, since it uses less digits than its factorization.

6805156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701293 (or 1701291 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 6805156 is about 2608.6693926215. The cubic root of 6805156 is about 189.5015188207.

The spelling of 6805156 in words is "six million, eight hundred five thousand, one hundred fifty-six".