445306129 has 2 divisors, whose sum is σ = 445306130. Its totient is φ = 445306128.

The previous prime is 445306117. The next prime is 445306133. The reversal of 445306129 is 921603544.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335622400 + 109683729 = 18320^2 + 10473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445306129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445306094 and 445306103.

It is not a weakly prime, because it can be changed into another prime (445306139) 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, 222653064 + 222653065.

It is an arithmetic number, because the mean of its divisors is an integer number (222653065).

Almost surely, 2^445306129 is an apocalyptic number.

It is an amenable number.

445306129 is a deficient number, since it is larger than the sum of its proper divisors (1).

445306129 is an equidigital number, since it uses as much as digits as its factorization.

445306129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 445306129 is about 21102.2778154397. The cubic root of 445306129 is about 763.6357012719.

The spelling of 445306129 in words is "four hundred forty-five million, three hundred six thousand, one hundred twenty-nine".