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1288285597 is a prime number
BaseRepresentation
bin100110011001001…
…1010110110011101
310022210010200121101
41030302122312131
510114300114342
6331500233101
743632150454
oct11462326635
93283120541
101288285597
11601227045
122bb53b791
13176b95c91
14c3151b9b
15781793b7
hex4cc9ad9d

1288285597 has 2 divisors, whose sum is σ = 1288285598. Its totient is φ = 1288285596.

The previous prime is 1288285561. The next prime is 1288285667. The reversal of 1288285597 is 7955828821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1242844516 + 45441081 = 35254^2 + 6741^2 .

It is an emirp because it is prime and its reverse (7955828821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1288285597 - 227 = 1154067869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1288285997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644142798 + 644142799.

It is an arithmetic number, because the mean of its divisors is an integer number (644142799).

Almost surely, 21288285597 is an apocalyptic number.

It is an amenable number.

1288285597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288285597 is an equidigital number, since it uses as much as digits as its factorization.

1288285597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 55.

The square root of 1288285597 is about 35892.6955939506. The cubic root of 1288285597 is about 1088.1047774873.

The spelling of 1288285597 in words is "one billion, two hundred eighty-eight million, two hundred eighty-five thousand, five hundred ninety-seven".