1005144134065 has 4 divisors (see below), whose sum is σ = 1206172960884. Its totient is φ = 804115307248.

The previous prime is 1005144134041. The next prime is 1005144134083. The reversal of 1005144134065 is 5604314415001.

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 687353748624 + 317790385441 = 829068^2 + 563729^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005144134065 - 2⁷ = 1005144133937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1005144134065.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100514413402 + ... + 100514413411.

It is an arithmetic number, because the mean of its divisors is an integer number (301543240221).

Almost surely, 2^{1005144134065} is an apocalyptic number.

It is an amenable number.

1005144134065 is a deficient number, since it is larger than the sum of its proper divisors (201028826819).

1005144134065 is an equidigital number, since it uses as much as digits as its factorization.

1005144134065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201028826818.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 1005144134065 its reverse (5604314415001), we get a palindrome (6609458549066).

The spelling of 1005144134065 in words is "one trillion, five billion, one hundred forty-four million, one hundred thirty-four thousand, sixty-five".