445144529 has 2 divisors, whose sum is σ = 445144530. Its totient is φ = 445144528.

The previous prime is 445144489. The next prime is 445144561. The reversal of 445144529 is 925441544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286963600 + 158180929 = 16940^2 + 12577^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445144529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445144492 and 445144501.

It is not a weakly prime, because it can be changed into another prime (445144589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222572264 + 222572265.

It is an arithmetic number, because the mean of its divisors is an integer number (222572265).

Almost surely, 2^445144529 is an apocalyptic number.

It is an amenable number.

445144529 is a deficient number, since it is larger than the sum of its proper divisors (1).

445144529 is an equidigital number, since it uses as much as digits as its factorization.

445144529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 38.

The square root of 445144529 is about 21098.4484974607. The cubic root of 445144529 is about 763.5433165416.

The spelling of 445144529 in words is "four hundred forty-five million, one hundred forty-four thousand, five hundred twenty-nine".