445112089 has 2 divisors, whose sum is σ = 445112090. Its totient is φ = 445112088.

The previous prime is 445112081. The next prime is 445112117. The reversal of 445112089 is 980211544.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298702089 + 146410000 = 17283^2 + 12100^2 .

It is a cyclic number.

It is not a de Polignac number, because 445112089 - 2³ = 445112081 is a prime.

It is a super-3 number, since 3×445112089³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (445112081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222556044 + 222556045.

It is an arithmetic number, because the mean of its divisors is an integer number (222556045).

Almost surely, 2^445112089 is an apocalyptic number.

It is an amenable number.

445112089 is a deficient number, since it is larger than the sum of its proper divisors (1).

445112089 is an equidigital number, since it uses as much as digits as its factorization.

445112089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 445112089 is about 21097.6797065459. The cubic root of 445112089 is about 763.5247682985.

The spelling of 445112089 in words is "four hundred forty-five million, one hundred twelve thousand, eighty-nine".