1449288847 has 2 divisors, whose sum is σ = 1449288848. Its totient is φ = 1449288846.

The previous prime is 1449288817. The next prime is 1449288871. The reversal of 1449288847 is 7488829441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1449288847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1449288817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724644423 + 724644424.

It is an arithmetic number, because the mean of its divisors is an integer number (724644424).

Almost surely, 2^1449288847 is an apocalyptic number.

1449288847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449288847 is an equidigital number, since it uses as much as digits as its factorization.

1449288847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4128768, while the sum is 55.

The square root of 1449288847 is about 38069.5264877303. The cubic root of 1449288847 is about 1131.6661267675. Note that the first 3 decimals are identical.

The spelling of 1449288847 in words is "one billion, four hundred forty-nine million, two hundred eighty-eight thousand, eight hundred forty-seven".