8220159 has 12 divisors (see below), whose sum is σ = 12126816. Its totient is φ = 5363232.

The previous prime is 8220143. The next prime is 8220169. The reversal of 8220159 is 9510228.

It is not a de Polignac number, because 8220159 - 2⁴ = 8220143 is a prime.

It is a super-3 number, since 3×8220159³ (a number of 22 digits) contains 333 as substring.

8220159 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9294 + ... + 10139.

It is an arithmetic number, because the mean of its divisors is an integer number (1010568).

Almost surely, 2^8220159 is an apocalyptic number.

8220159 is a deficient number, since it is larger than the sum of its proper divisors (3906657).

8220159 is a wasteful number, since it uses less digits than its factorization.

8220159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19486 (or 19483 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 8220159 is about 2867.0819660414. The cubic root of 8220159 is about 201.8180811585.

The spelling of 8220159 in words is "eight million, two hundred twenty thousand, one hundred fifty-nine".