1288568 has 8 divisors (see below), whose sum is σ = 2416080. Its totient is φ = 644280.

The previous prime is 1288559. The next prime is 1288571. The reversal of 1288568 is 8658821.

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

It is a congruent number.

It is an unprimeable number.

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, 80528 + ... + 80543.

It is an arithmetic number, because the mean of its divisors is an integer number (302010).

2^1288568 is an apocalyptic number.

It is an amenable number.

1288568 is a deficient number, since it is larger than the sum of its proper divisors (1127512).

1288568 is a wasteful number, since it uses less digits than its factorization.

1288568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161077 (or 161073 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 1288568 is about 1135.1510912649. The cubic root of 1288568 is about 108.8184278907.

The spelling of 1288568 in words is "one million, two hundred eighty-eight thousand, five hundred sixty-eight".