1003001345 has 8 divisors (see below), whose sum is σ = 1223333160. Its totient is φ = 789246720.

The previous prime is 1003001339. The next prime is 1003001383. The reversal of 1003001345 is 5431003001.

It can be written as a sum of positive squares in 4 ways, for example, as 85396081 + 917605264 = 9241^2 + 30292^2 .

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

It is not a de Polignac number, because 1003001345 - 2⁶ = 1003001281 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1643960 + ... + 1644569.

It is an arithmetic number, because the mean of its divisors is an integer number (152916645).

Almost surely, 2^1003001345 is an apocalyptic number.

It is an amenable number.

1003001345 is a deficient number, since it is larger than the sum of its proper divisors (220331815).

1003001345 is an equidigital number, since it uses as much as digits as its factorization.

1003001345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288595.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1003001345 is about 31670.1964787085. The cubic root of 1003001345 is about 1000.9994491020. Note that the first 3 decimals are identical.

Adding to 1003001345 its reverse (5431003001), we get a palindrome (6434004346).

The spelling of 1003001345 in words is "one billion, three million, one thousand, three hundred forty-five".