1282448291 has 2 divisors, whose sum is σ = 1282448292. Its totient is φ = 1282448290.

The previous prime is 1282448287. The next prime is 1282448347. The reversal of 1282448291 is 1928442821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1282448291 - 2² = 1282448287 is a prime.

It is not a weakly prime, because it can be changed into another prime (1282448281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641224145 + 641224146.

It is an arithmetic number, because the mean of its divisors is an integer number (641224146).

Almost surely, 2^1282448291 is an apocalyptic number.

1282448291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282448291 is an equidigital number, since it uses as much as digits as its factorization.

1282448291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 41.

The square root of 1282448291 is about 35811.2872011046. The cubic root of 1282448291 is about 1086.4588645120.

The spelling of 1282448291 in words is "one billion, two hundred eighty-two million, four hundred forty-eight thousand, two hundred ninety-one".