1361027305 has 16 divisors (see below), whose sum is σ = 1789573824. Its totient is φ = 985468480.

The previous prime is 1361027299. The next prime is 1361027309. The reversal of 1361027305 is 5037201631.

It is not a de Polignac number, because 1361027305 - 2⁷ = 1361027177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361027309) 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, 42022 + ... + 66991.

It is an arithmetic number, because the mean of its divisors is an integer number (111848364).

Almost surely, 2^1361027305 is an apocalyptic number.

It is an amenable number.

1361027305 is a deficient number, since it is larger than the sum of its proper divisors (428546519).

1361027305 is a wasteful number, since it uses less digits than its factorization.

1361027305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109256.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 1361027305 is about 36892.1035588918. The cubic root of 1361027305 is about 1108.2105477385.

Adding to 1361027305 its reverse (5037201631), we get a palindrome (6398228936).

The spelling of 1361027305 in words is "one billion, three hundred sixty-one million, twenty-seven thousand, three hundred five".