1000275065 has 4 divisors (see below), whose sum is σ = 1200330084. Its totient is φ = 800220048.

The previous prime is 1000275041. The next prime is 1000275119. The reversal of 1000275065 is 5605720001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 168298729 + 831976336 = 12973^2 + 28844^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000275065 - 2¹² = 1000270969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100027502 + ... + 100027511.

It is an arithmetic number, because the mean of its divisors is an integer number (300082521).

Almost surely, 2^1000275065 is an apocalyptic number.

It is an amenable number.

1000275065 is a deficient number, since it is larger than the sum of its proper divisors (200055019).

1000275065 is an equidigital number, since it uses as much as digits as its factorization.

1000275065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200055018.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1000275065 is about 31627.1254621725. The cubic root of 1000275065 is about 1000.0916799279.

Adding to 1000275065 its reverse (5605720001), we get a palindrome (6605995066).

The spelling of 1000275065 in words is "one billion, two hundred seventy-five thousand, sixty-five".