1288327253 has 2 divisors, whose sum is σ = 1288327254. Its totient is φ = 1288327252.

The previous prime is 1288327247. The next prime is 1288327273. The reversal of 1288327253 is 3527238821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1087878289 + 200448964 = 32983^2 + 14158^2 .

It is a cyclic number.

It is not a de Polignac number, because 1288327253 - 2¹⁴ = 1288310869 is a prime.

It is a super-2 number, since 2×1288327253² = 3319574221645052018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1288327253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1288327223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644163626 + 644163627.

It is an arithmetic number, because the mean of its divisors is an integer number (644163627).

Almost surely, 2^1288327253 is an apocalyptic number.

It is an amenable number.

1288327253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288327253 is an equidigital number, since it uses as much as digits as its factorization.

1288327253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 41.

The square root of 1288327253 is about 35893.2758744587. The cubic root of 1288327253 is about 1088.1165051156.

The spelling of 1288327253 in words is "one billion, two hundred eighty-eight million, three hundred twenty-seven thousand, two hundred fifty-three".