8145556 has 12 divisors (see below), whose sum is σ = 14328468. Its totient is φ = 4051712.

The previous prime is 8145541. The next prime is 8145563. The reversal of 8145556 is 6555418.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4343056 + 3802500 = 2084^2 + 1950^2 .

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 4381 + ... + 5956.

It is an arithmetic number, because the mean of its divisors is an integer number (1194039).

Almost surely, 2^8145556 is an apocalyptic number.

It is an amenable number.

8145556 is a deficient number, since it is larger than the sum of its proper divisors (6182912).

8145556 is a wasteful number, since it uses less digits than its factorization.

8145556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10538 (or 10536 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

The square root of 8145556 is about 2854.0420459412. The cubic root of 8145556 is about 201.2056836952.

The spelling of 8145556 in words is "eight million, one hundred forty-five thousand, five hundred fifty-six".