8211144 has 16 divisors (see below), whose sum is σ = 20527920. Its totient is φ = 2737040.

The previous prime is 8211139. The next prime is 8211163. The reversal of 8211144 is 4411128.

It is a happy number.

8211144 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 8211144.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171042 + ... + 171089.

It is an arithmetic number, because the mean of its divisors is an integer number (1282995).

Almost surely, 2^8211144 is an apocalyptic number.

It is an amenable number.

8211144 is an abundant number, since it is smaller than the sum of its proper divisors (12316776).

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

8211144 is a wasteful number, since it uses less digits than its factorization.

8211144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342140 (or 342136 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

The square root of 8211144 is about 2865.5093788016. The cubic root of 8211144 is about 201.7442766043.

The spelling of 8211144 in words is "eight million, two hundred eleven thousand, one hundred forty-four".