8220154 has 16 divisors (see below), whose sum is σ = 13027392. Its totient is φ = 3882208.

The previous prime is 8220143. The next prime is 8220169. The reversal of 8220154 is 4510228.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2742 + ... + 4894.

It is an arithmetic number, because the mean of its divisors is an integer number (814212).

Almost surely, 2^8220154 is an apocalyptic number.

8220154 is a deficient number, since it is larger than the sum of its proper divisors (4807238).

8220154 is a wasteful number, since it uses less digits than its factorization.

8220154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 8220154 is about 2867.0810940746. The cubic root of 8220154 is about 201.8180402392.

The spelling of 8220154 in words is "eight million, two hundred twenty thousand, one hundred fifty-four".