1001004505 has 16 divisors (see below), whose sum is σ = 1271096064. Its totient is φ = 755191360.

The previous prime is 1001004503. The next prime is 1001004509. The reversal of 1001004505 is 5054001001.

It is a happy number.

It is not a de Polignac number, because 1001004505 - 2¹ = 1001004503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001004503) 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, 53134 + ... + 69463.

It is an arithmetic number, because the mean of its divisors is an integer number (79443504).

Almost surely, 2^1001004505 is an apocalyptic number.

It is an amenable number.

1001004505 is a deficient number, since it is larger than the sum of its proper divisors (270091559).

1001004505 is a wasteful number, since it uses less digits than its factorization.

1001004505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122696.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1001004505 is about 31638.6552337485. The cubic root of 1001004505 is about 1000.3347229480.

Adding to 1001004505 its reverse (5054001001), we get a palindrome (6055005506).

The spelling of 1001004505 in words is "one billion, one million, four thousand, five hundred five".