6822149 has 4 divisors (see below), whose sum is σ = 6882636. Its totient is φ = 6761664.

The previous prime is 6822143. The next prime is 6822161. The reversal of 6822149 is 9412286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1737124 + 5085025 = 1318^2 + 2255^2 .

It is a cyclic number.

It is not a de Polignac number, because 6822149 - 2⁴ = 6822133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6822143) 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, 30074 + ... + 30299.

It is an arithmetic number, because the mean of its divisors is an integer number (1720659).

Almost surely, 2^6822149 is an apocalyptic number.

It is an amenable number.

6822149 is a deficient number, since it is larger than the sum of its proper divisors (60487).

6822149 is a wasteful number, since it uses less digits than its factorization.

6822149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60486.

The product of its digits is 6912, while the sum is 32.

The square root of 6822149 is about 2611.9243863481. The cubic root of 6822149 is about 189.6591210201.

The spelling of 6822149 in words is "six million, eight hundred twenty-two thousand, one hundred forty-nine".