445225943 has 2 divisors, whose sum is σ = 445225944. Its totient is φ = 445225942.

The previous prime is 445225939. The next prime is 445225961. The reversal of 445225943 is 349522544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445225943 - 2² = 445225939 is a prime.

It is a super-2 number, since 2×445225943² = 396452280640478498, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 445225897 and 445225906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445225643) 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, 222612971 + 222612972.

It is an arithmetic number, because the mean of its divisors is an integer number (222612972).

Almost surely, 2^445225943 is an apocalyptic number.

445225943 is a deficient number, since it is larger than the sum of its proper divisors (1).

445225943 is an equidigital number, since it uses as much as digits as its factorization.

445225943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 38.

The square root of 445225943 is about 21100.3777928264. The cubic root of 445225943 is about 763.5898627172.

The spelling of 445225943 in words is "four hundred forty-five million, two hundred twenty-five thousand, nine hundred forty-three".