1291288002 has 8 divisors (see below), whose sum is σ = 2582576016. Its totient is φ = 430429332.

The previous prime is 1291288001. The next prime is 1291288003. The reversal of 1291288002 is 2008821921.

It is an interprime number because it is at equal distance from previous prime (1291288001) and next prime (1291288003).

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

1291288002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1291288001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107607328 + ... + 107607339.

It is an arithmetic number, because the mean of its divisors is an integer number (322822002).

Almost surely, 2^1291288002 is an apocalyptic number.

1291288002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1291288002 is a wasteful number, since it uses less digits than its factorization.

1291288002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215214672.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 1291288002 is about 35934.4959892302. The cubic root of 1291288002 is about 1088.9494133364.

The spelling of 1291288002 in words is "one billion, two hundred ninety-one million, two hundred eighty-eight thousand, two".