445441603 has 2 divisors, whose sum is σ = 445441604. Its totient is φ = 445441602.

The previous prime is 445441597. The next prime is 445441657. The reversal of 445441603 is 306144544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445441603 - 2¹³ = 445433411 is a prime.

It is not a weakly prime, because it can be changed into another prime (445471603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222720801 + 222720802.

It is an arithmetic number, because the mean of its divisors is an integer number (222720802).

Almost surely, 2^445441603 is an apocalyptic number.

445441603 is a deficient number, since it is larger than the sum of its proper divisors (1).

445441603 is an equidigital number, since it uses as much as digits as its factorization.

445441603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 445441603 is about 21105.4875091764. The cubic root of 445441603 is about 763.7131328686.

The spelling of 445441603 in words is "four hundred forty-five million, four hundred forty-one thousand, six hundred three".