1281108896 has 24 divisors (see below), whose sum is σ = 2654930880. Its totient is φ = 606840768.

The previous prime is 1281108893. The next prime is 1281108977. The reversal of 1281108896 is 6988011821.

It is not an unprimeable number, because it can be changed into a prime (1281108893) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1052936 + ... + 1054151.

It is an arithmetic number, because the mean of its divisors is an integer number (110622120).

Almost surely, 2^1281108896 is an apocalyptic number.

1281108896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1281108896 is an abundant number, since it is smaller than the sum of its proper divisors (1373821984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1281108896 is a wasteful number, since it uses less digits than its factorization.

1281108896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107116 (or 2107108 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 44.

The square root of 1281108896 is about 35792.5815777516. The cubic root of 1281108896 is about 1086.0804985172.

The spelling of 1281108896 in words is "one billion, two hundred eighty-one million, one hundred eight thousand, eight hundred ninety-six".