1004505345 has 12 divisors (see below), whose sum is σ = 1741142676. Its totient is φ = 535736160.

The previous prime is 1004505287. The next prime is 1004505377. The reversal of 1004505345 is 5435054001.

It can be written as a sum of positive squares in 2 ways, for example, as 670602816 + 333902529 = 25896^2 + 18273^2 .

It is not a de Polignac number, because 1004505345 - 2¹⁵ = 1004472577 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11161126 + ... + 11161215.

It is an arithmetic number, because the mean of its divisors is an integer number (145095223).

Almost surely, 2^1004505345 is an apocalyptic number.

1004505345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1004505345 is a deficient number, since it is larger than the sum of its proper divisors (736637331).

1004505345 is a wasteful number, since it uses less digits than its factorization.

1004505345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22322352 (or 22322349 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1004505345 is about 31693.9323057269. The cubic root of 1004505345 is about 1001.4995319467.

Adding to 1004505345 its reverse (5435054001), we get a palindrome (6439559346).

The spelling of 1004505345 in words is "one billion, four million, five hundred five thousand, three hundred forty-five".