1447397573 has 2 divisors, whose sum is σ = 1447397574. Its totient is φ = 1447397572.

The previous prime is 1447397531. The next prime is 1447397597. The reversal of 1447397573 is 3757937441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1055080324 + 392317249 = 32482^2 + 19807^2 .

It is an emirp because it is prime and its reverse (3757937441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1447397573 - 2⁸ = 1447397317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1447397503) 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, 723698786 + 723698787.

It is an arithmetic number, because the mean of its divisors is an integer number (723698787).

Almost surely, 2^1447397573 is an apocalyptic number.

It is an amenable number.

1447397573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1447397573 is an equidigital number, since it uses as much as digits as its factorization.

1447397573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 50.

The square root of 1447397573 is about 38044.6786423542. The cubic root of 1447397573 is about 1131.1736501975.

The spelling of 1447397573 in words is "one billion, four hundred forty-seven million, three hundred ninety-seven thousand, five hundred seventy-three".