1005004345 has 16 divisors (see below), whose sum is σ = 1248445440. Its totient is φ = 775857600.

The previous prime is 1005004331. The next prime is 1005004349. The reversal of 1005004345 is 5434005001.

It is not a de Polignac number, because 1005004345 - 2²⁹ = 468133433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1005004349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46615 + ... + 64675.

It is an arithmetic number, because the mean of its divisors is an integer number (78027840).

Almost surely, 2^1005004345 is an apocalyptic number.

It is an amenable number.

1005004345 is a deficient number, since it is larger than the sum of its proper divisors (243441095).

1005004345 is a wasteful number, since it uses less digits than its factorization.

1005004345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18456.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1005004345 is about 31701.8034975930. The cubic root of 1005004345 is about 1001.6653401028.

Adding to 1005004345 its reverse (5434005001), we get a palindrome (6439009346).

The spelling of 1005004345 in words is "one billion, five million, four thousand, three hundred forty-five".