8122215 has 16 divisors (see below), whose sum is σ = 13680000. Its totient is φ = 4103712.

The previous prime is 8122207. The next prime is 8122237. The reversal of 8122215 is 5122218.

It is a happy number.

It is not a de Polignac number, because 8122215 - 2³ = 8122207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8122191 and 8122200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13965 + ... + 14534.

It is an arithmetic number, because the mean of its divisors is an integer number (855000).

Almost surely, 2^8122215 is an apocalyptic number.

8122215 is a deficient number, since it is larger than the sum of its proper divisors (5557785).

8122215 is a wasteful number, since it uses less digits than its factorization.

8122215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28526.

The product of its digits is 320, while the sum is 21.

The square root of 8122215 is about 2849.9499995614. The cubic root of 8122215 is about 201.0133156199.

The spelling of 8122215 in words is "eight million, one hundred twenty-two thousand, two hundred fifteen".