8156228 has 6 divisors (see below), whose sum is σ = 14273406. Its totient is φ = 4078112.

The previous prime is 8156189. The next prime is 8156231. The reversal of 8156228 is 8226518.

It can be written as a sum of positive squares in only one way, i.e., 6512704 + 1643524 = 2552^2 + 1282^2 .

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 8156194 and 8156203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1019525 + ... + 1019532.

It is an arithmetic number, because the mean of its divisors is an integer number (2378901).

Almost surely, 2^8156228 is an apocalyptic number.

It is an amenable number.

8156228 is a deficient number, since it is larger than the sum of its proper divisors (6117178).

8156228 is a wasteful number, since it uses less digits than its factorization.

8156228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039061 (or 2039059 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 8156228 is about 2855.9110630410. The cubic root of 8156228 is about 201.2935160455.

The spelling of 8156228 in words is "eight million, one hundred fifty-six thousand, two hundred twenty-eight".