1288191552 has 28 divisors (see below), whose sum is σ = 3408340656. Its totient is φ = 429397120.

The previous prime is 1288191529. The next prime is 1288191601. The reversal of 1288191552 is 2551918821.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3354474 + ... + 3354857.

It is an arithmetic number, because the mean of its divisors is an integer number (121726452).

Almost surely, 2^1288191552 is an apocalyptic number.

1288191552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1288191552 is an abundant number, since it is smaller than the sum of its proper divisors (2120149104).

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

1288191552 is an equidigital number, since it uses as much as digits as its factorization.

1288191552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6709346 (or 6709336 counting only the distinct ones).

The product of its digits is 57600, while the sum is 42.

The square root of 1288191552 is about 35891.3854845421. The cubic root of 1288191552 is about 1088.0782995841.

The spelling of 1288191552 in words is "one billion, two hundred eighty-eight million, one hundred ninety-one thousand, five hundred fifty-two".