1005215345 has 16 divisors (see below), whose sum is σ = 1259563392. Its totient is φ = 768683520.

The previous prime is 1005215339. The next prime is 1005215359. The reversal of 1005215345 is 5435125001.

It is not a de Polignac number, because 1005215345 - 2¹⁰ = 1005214321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296510 + ... + 299880.

It is an arithmetic number, because the mean of its divisors is an integer number (78722712).

Almost surely, 2^1005215345 is an apocalyptic number.

It is an amenable number.

1005215345 is a deficient number, since it is larger than the sum of its proper divisors (254348047).

1005215345 is a wasteful number, since it uses less digits than its factorization.

1005215345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1005215345 is about 31705.1312093169. The cubic root of 1005215345 is about 1001.7354348570.

The spelling of 1005215345 in words is "one billion, five million, two hundred fifteen thousand, three hundred forty-five".