1288313245 has 8 divisors (see below), whose sum is σ = 1547470080. Its totient is φ = 1029654480.

The previous prime is 1288313233. The next prime is 1288313263. The reversal of 1288313245 is 5423138821.

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

It is not a de Polignac number, because 1288313245 - 2²³ = 1279924637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118801 + ... + 129190.

It is an arithmetic number, because the mean of its divisors is an integer number (193433760).

Almost surely, 2^1288313245 is an apocalyptic number.

It is an amenable number.

1288313245 is a deficient number, since it is larger than the sum of its proper divisors (259156835).

1288313245 is a wasteful number, since it uses less digits than its factorization.

1288313245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249035.

The product of its digits is 46080, while the sum is 37.

The square root of 1288313245 is about 35893.0807398863. The cubic root of 1288313245 is about 1088.1125613994.

The spelling of 1288313245 in words is "one billion, two hundred eighty-eight million, three hundred thirteen thousand, two hundred forty-five".