1075638856 has 8 divisors (see below), whose sum is σ = 2016822870. Its totient is φ = 537819424.

The previous prime is 1075638833. The next prime is 1075638857. The reversal of 1075638856 is 6588365701.

It can be written as a sum of positive squares in only one way, i.e., 914094756 + 161544100 = 30234^2 + 12710^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1075638857) by changing a digit.

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, 67227421 + ... + 67227436.

Almost surely, 2^1075638856 is an apocalyptic number.

It is an amenable number.

1075638856 is a deficient number, since it is larger than the sum of its proper divisors (941184014).

1075638856 is a wasteful number, since it uses less digits than its factorization.

1075638856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134454863 (or 134454859 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

The square root of 1075638856 is about 32796.9336371558. The cubic root of 1075638856 is about 1024.6026954340.

The spelling of 1075638856 in words is "one billion, seventy-five million, six hundred thirty-eight thousand, eight hundred fifty-six".