1365783163 has 4 divisors (see below), whose sum is σ = 1367098720. Its totient is φ = 1364467608.

The previous prime is 1365783161. The next prime is 1365783169. The reversal of 1365783163 is 3613875631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3613875631 = 57847 ⋅62473.

It is a cyclic number.

It is not a de Polignac number, because 1365783163 - 2¹ = 1365783161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1365783161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656220 + ... + 658297.

It is an arithmetic number, because the mean of its divisors is an integer number (341774680).

Almost surely, 2^1365783163 is an apocalyptic number.

1365783163 is a deficient number, since it is larger than the sum of its proper divisors (1315557).

1365783163 is a wasteful number, since it uses less digits than its factorization.

1365783163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315556.

The product of its digits is 272160, while the sum is 43.

The square root of 1365783163 is about 36956.5036630902. The cubic root of 1365783163 is about 1109.4998593612.

The spelling of 1365783163 in words is "one billion, three hundred sixty-five million, seven hundred eighty-three thousand, one hundred sixty-three".