1288560855 has 32 divisors (see below), whose sum is σ = 2157410304. Its totient is φ = 655497216.

The previous prime is 1288560821. The next prime is 1288560859. The reversal of 1288560855 is 5580658821.

It is not a de Polignac number, because 1288560855 - 2¹⁹ = 1288036567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288560859) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 121527 + ... + 131703.

It is an arithmetic number, because the mean of its divisors is an integer number (67419072).

Almost surely, 2^1288560855 is an apocalyptic number.

1288560855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1288560855 is a deficient number, since it is larger than the sum of its proper divisors (868849449).

1288560855 is a wasteful number, since it uses less digits than its factorization.

1288560855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10575.

The product of its (nonzero) digits is 768000, while the sum is 48.

The square root of 1288560855 is about 35896.5298462122. The cubic root of 1288560855 is about 1088.1822676071.

The spelling of 1288560855 in words is "one billion, two hundred eighty-eight million, five hundred sixty thousand, eight hundred fifty-five".