6816130 has 8 divisors (see below), whose sum is σ = 12269052. Its totient is φ = 2726448.

The previous prime is 6816113. The next prime is 6816137. The reversal of 6816130 is 316186.

It can be written as a sum of positive squares in 2 ways, for example, as 6466849 + 349281 = 2543^2 + 591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6816095 and 6816104.

It is not an unprimeable number, because it can be changed into a prime (6816137) 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, 340797 + ... + 340816.

Almost surely, 2^6816130 is an apocalyptic number.

6816130 is a deficient number, since it is larger than the sum of its proper divisors (5452922).

6816130 is a wasteful number, since it uses less digits than its factorization.

6816130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681620.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 6816130 is about 2610.7719165029. The cubic root of 6816130 is about 189.6033275482.

The spelling of 6816130 in words is "six million, eight hundred sixteen thousand, one hundred thirty".