445235473 has 2 divisors, whose sum is σ = 445235474. Its totient is φ = 445235472.

The previous prime is 445235431. The next prime is 445235477. The reversal of 445235473 is 374532544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 440496144 + 4739329 = 20988^2 + 2177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445235473 is a prime.

It is equal to p_23613787 and since 445235473 and 23613787 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (445235477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222617736 + 222617737.

It is an arithmetic number, because the mean of its divisors is an integer number (222617737).

Almost surely, 2^445235473 is an apocalyptic number.

It is an amenable number.

445235473 is a deficient number, since it is larger than the sum of its proper divisors (1).

445235473 is an equidigital number, since it uses as much as digits as its factorization.

445235473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 37.

The square root of 445235473 is about 21100.6036169584. The cubic root of 445235473 is about 763.5953108569.

The spelling of 445235473 in words is "four hundred forty-five million, two hundred thirty-five thousand, four hundred seventy-three".