445465019 has 2 divisors, whose sum is σ = 445465020. Its totient is φ = 445465018.

The previous prime is 445465003. The next prime is 445465057. The reversal of 445465019 is 910564544.

It is an a-pointer prime, because the next prime (445465057) can be obtained adding 445465019 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445465019 - 2⁴ = 445465003 is a prime.

It is a super-2 number, since 2×445465019² = 396878166305340722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (445465519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222732509 + 222732510.

It is an arithmetic number, because the mean of its divisors is an integer number (222732510).

Almost surely, 2^445465019 is an apocalyptic number.

445465019 is a deficient number, since it is larger than the sum of its proper divisors (1).

445465019 is an equidigital number, since it uses as much as digits as its factorization.

445465019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 445465019 is about 21106.0422391314. The cubic root of 445465019 is about 763.7265149395.

The spelling of 445465019 in words is "four hundred forty-five million, four hundred sixty-five thousand, nineteen".