1287353 has 2 divisors, whose sum is σ = 1287354. Its totient is φ = 1287352.

The previous prime is 1287347. The next prime is 1287361. The reversal of 1287353 is 3537821.

1287353 is nontrivially palindromic in base 2.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1281424 + 5929 = 1132^2 + 77^2 .

It is a cyclic number.

It is not a de Polignac number, because 1287353 - 2⁶ = 1287289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1287323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643676 + 643677.

It is an arithmetic number, because the mean of its divisors is an integer number (643677).

2^1287353 is an apocalyptic number.

It is an amenable number.

1287353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1287353 is an equidigital number, since it uses as much as digits as its factorization.

1287353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 1287353 is about 1134.6157940025. The cubic root of 1287353 is about 108.7842152436.

The spelling of 1287353 in words is "one million, two hundred eighty-seven thousand, three hundred fifty-three".