445119209 has 2 divisors, whose sum is σ = 445119210. Its totient is φ = 445119208.

The previous prime is 445119193. The next prime is 445119217. The reversal of 445119209 is 902911544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350737984 + 94381225 = 18728^2 + 9715^2 .

It is a cyclic number.

It is not a de Polignac number, because 445119209 - 2⁴ = 445119193 is a prime.

It is a super-2 number, since 2×445119209² = 396262220441571362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (445119229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222559604 + 222559605.

It is an arithmetic number, because the mean of its divisors is an integer number (222559605).

Almost surely, 2^445119209 is an apocalyptic number.

It is an amenable number.

445119209 is a deficient number, since it is larger than the sum of its proper divisors (1).

445119209 is an equidigital number, since it uses as much as digits as its factorization.

445119209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 445119209 is about 21097.8484448059. The cubic root of 445119209 is about 763.5288393834.

The spelling of 445119209 in words is "four hundred forty-five million, one hundred nineteen thousand, two hundred nine".