6682138 has 4 divisors (see below), whose sum is σ = 10023210. Its totient is φ = 3341068.

The previous prime is 6682133. The next prime is 6682141. The reversal of 6682138 is 8312866.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8312866 = 2 ⋅4156433.

It can be written as a sum of positive squares in only one way, i.e., 6640929 + 41209 = 2577^2 + 203^2 .

It is not an unprimeable number, because it can be changed into a prime (6682133) 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, 1670533 + ... + 1670536.

Almost surely, 2^6682138 is an apocalyptic number.

6682138 is a deficient number, since it is larger than the sum of its proper divisors (3341072).

6682138 is a wasteful number, since it uses less digits than its factorization.

6682138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341071.

The product of its digits is 13824, while the sum is 34.

The square root of 6682138 is about 2584.9831720922. The cubic root of 6682138 is about 188.3526841178.

The spelling of 6682138 in words is "six million, six hundred eighty-two thousand, one hundred thirty-eight".