1071305056 has 12 divisors (see below), whose sum is σ = 2109131892. Its totient is φ = 535652512.

The previous prime is 1071305047. The next prime is 1071305093. The reversal of 1071305056 is 6505031701.

It is a super-2 number, since 2×1071305056² = 2295389046022326272, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 16739110 + ... + 16739173.

It is an arithmetic number, because the mean of its divisors is an integer number (175760991).

Almost surely, 2^1071305056 is an apocalyptic number.

1071305056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1071305056 is a deficient number, since it is larger than the sum of its proper divisors (1037826836).

1071305056 is an equidigital number, since it uses as much as digits as its factorization.

1071305056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33478293 (or 33478285 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 1071305056 is about 32730.7967516833. The cubic root of 1071305056 is about 1023.2247855901.

Adding to 1071305056 its reverse (6505031701), we get a palindrome (7576336757).

The spelling of 1071305056 in words is "one billion, seventy-one million, three hundred five thousand, fifty-six".