1005243545 has 16 divisors (see below), whose sum is σ = 1288741440. Its totient is φ = 750492864.

The previous prime is 1005243539. The next prime is 1005243553. The reversal of 1005243545 is 5453425001.

It is a cyclic number.

It is not a de Polignac number, because 1005243545 - 2⁴ = 1005243529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72602 + ... + 85331.

It is an arithmetic number, because the mean of its divisors is an integer number (80546340).

Almost surely, 2^1005243545 is an apocalyptic number.

It is an amenable number.

1005243545 is a deficient number, since it is larger than the sum of its proper divisors (283497895).

1005243545 is a wasteful number, since it uses less digits than its factorization.

1005243545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158024.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1005243545 is about 31705.5759291643. The cubic root of 1005243545 is about 1001.7448022279.

Adding to 1005243545 its reverse (5453425001), we get a palindrome (6458668546).

The spelling of 1005243545 in words is "one billion, five million, two hundred forty-three thousand, five hundred forty-five".