6816132 has 18 divisors (see below), whose sum is σ = 17229758. Its totient is φ = 2272032.

The previous prime is 6816113. The next prime is 6816137. The reversal of 6816132 is 2316186.

It can be written as a sum of positive squares in only one way, i.e., 5089536 + 1726596 = 2256^2 + 1314^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 6816096 and 6816105.

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 5 ways as a sum of consecutive naturals, for example, 94633 + ... + 94704.

Almost surely, 2^6816132 is an apocalyptic number.

It is an amenable number.

6816132 is an abundant number, since it is smaller than the sum of its proper divisors (10413626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6816132 is a wasteful number, since it uses less digits than its factorization.

6816132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189347 (or 189342 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 6816132 is about 2610.7722995313. The cubic root of 6816132 is about 189.6033460927.

The spelling of 6816132 in words is "six million, eight hundred sixteen thousand, one hundred thirty-two".