821133106 has 8 divisors (see below), whose sum is σ = 1250083440. Its totient is φ = 404438628.

The previous prime is 821133101. The next prime is 821133109. The reversal of 821133106 is 601331128.

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

It is not an unprimeable number, because it can be changed into a prime (821133101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3063796 + ... + 3064063.

It is an arithmetic number, because the mean of its divisors is an integer number (156260430).

Almost surely, 2^821133106 is an apocalyptic number.

821133106 is a deficient number, since it is larger than the sum of its proper divisors (428950334).

821133106 is a wasteful number, since it uses less digits than its factorization.

821133106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6127928.

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

The square root of 821133106 is about 28655.4201853681. The cubic root of 821133106 is about 936.4210923667.

The spelling of 821133106 in words is "eight hundred twenty-one million, one hundred thirty-three thousand, one hundred six".