445448651 has 2 divisors, whose sum is σ = 445448652. Its totient is φ = 445448650.

The previous prime is 445448611. The next prime is 445448677. The reversal of 445448651 is 156844544.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445448651 is a prime.

It is a super-3 number, since 3×445448651³ (a number of 27 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 445448599 and 445448608.

It is not a weakly prime, because it can be changed into another prime (445448611) 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, 222724325 + 222724326.

It is an arithmetic number, because the mean of its divisors is an integer number (222724326).

Almost surely, 2^445448651 is an apocalyptic number.

445448651 is a deficient number, since it is larger than the sum of its proper divisors (1).

445448651 is an equidigital number, since it uses as much as digits as its factorization.

445448651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 307200, while the sum is 41.

The square root of 445448651 is about 21105.6544793096. The cubic root of 445448651 is about 763.7171607978.

The spelling of 445448651 in words is "four hundred forty-five million, four hundred forty-eight thousand, six hundred fifty-one".