445445221153 has 2 divisors, whose sum is σ = 445445221154. Its totient is φ = 445445221152.

The previous prime is 445445221103. The next prime is 445445221157. The reversal of 445445221153 is 351122544544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443906385169 + 1538835984 = 666263^2 + 39228^2 .

It is a cyclic number.

It is not a de Polignac number, because 445445221153 - 2⁹ = 445445220641 is a prime.

It is not a weakly prime, because it can be changed into another prime (445445221157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222722610576 + 222722610577.

It is an arithmetic number, because the mean of its divisors is an integer number (222722610577).

Almost surely, 2^445445221153 is an apocalyptic number.

It is an amenable number.

445445221153 is a deficient number, since it is larger than the sum of its proper divisors (1).

445445221153 is an equidigital number, since it uses as much as digits as its factorization.

445445221153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384000, while the sum is 40.

Adding to 445445221153 its reverse (351122544544), we get a palindrome (796567765697).

The spelling of 445445221153 in words is "four hundred forty-five billion, four hundred forty-five million, two hundred twenty-one thousand, one hundred fifty-three".