1009089056 has 12 divisors (see below), whose sum is σ = 1986644142. Its totient is φ = 504544512.

The previous prime is 1009089019. The next prime is 1009089071. The reversal of 1009089056 is 6509809001.

It can be written as a sum of positive squares in only one way, i.e., 955799056 + 53290000 = 30916^2 + 7300^2 .

It is a super-2 number, since 2×1009089056² = 2036521445877942272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15766985 + ... + 15767048.

Almost surely, 2^1009089056 is an apocalyptic number.

1009089056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1009089056 is a deficient number, since it is larger than the sum of its proper divisors (977555086).

1009089056 is an equidigital number, since it uses as much as digits as its factorization.

1009089056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31534043 (or 31534035 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 1009089056 is about 31766.1621226109. The cubic root of 1009089056 is about 1003.0205524102.

The spelling of 1009089056 in words is "one billion, nine million, eighty-nine thousand, fifty-six".