1445012005 has 8 divisors (see below), whose sum is σ = 1757768472. Its totient is φ = 1140173568.

The previous prime is 1445012003. The next prime is 1445012057. The reversal of 1445012005 is 5002105441.

It can be written as a sum of positive squares in 4 ways, for example, as 205549569 + 1239462436 = 14337^2 + 35206^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1445012005 - 2¹ = 1445012003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445012003) 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 in 7 ways as a sum of consecutive naturals, for example, 1979104 + ... + 1979833.

It is an arithmetic number, because the mean of its divisors is an integer number (219721059).

Almost surely, 2^1445012005 is an apocalyptic number.

It is an amenable number.

1445012005 is a deficient number, since it is larger than the sum of its proper divisors (312756467).

1445012005 is an equidigital number, since it uses as much as digits as its factorization.

1445012005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959015.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1445012005 is about 38013.3135230277. The cubic root of 1445012005 is about 1130.5518501700.

Adding to 1445012005 its reverse (5002105441), we get a palindrome (6447117446).

The spelling of 1445012005 in words is "one billion, four hundred forty-five million, twelve thousand, five".