1288552879 has 8 divisors (see below), whose sum is σ = 1323982800. Its totient is φ = 1253313600.

The previous prime is 1288552877. The next prime is 1288552901. The reversal of 1288552879 is 9782558821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1288552879 - 2¹ = 1288552877 is a prime.

It is a super-3 number, since 3×1288552879³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288552871) 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 7 ways as a sum of consecutive naturals, for example, 33904 + ... + 61045.

It is an arithmetic number, because the mean of its divisors is an integer number (165497850).

Almost surely, 2^1288552879 is an apocalyptic number.

1288552879 is a deficient number, since it is larger than the sum of its proper divisors (35429921).

1288552879 is an equidigital number, since it uses as much as digits as its factorization.

1288552879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95321.

The product of its digits is 3225600, while the sum is 55.

The square root of 1288552879 is about 35896.4187489504. The cubic root of 1288552879 is about 1088.1800223737.

The spelling of 1288552879 in words is "one billion, two hundred eighty-eight million, five hundred fifty-two thousand, eight hundred seventy-nine".