1383663265 has 16 divisors (see below), whose sum is σ = 1696692096. Its totient is φ = 1082972800.

The previous prime is 1383663247. The next prime is 1383663287. The reversal of 1383663265 is 5623663831.

It is not a de Polignac number, because 1383663265 - 2²³ = 1375274657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31629 + ... + 61381.

It is an arithmetic number, because the mean of its divisors is an integer number (106043256).

Almost surely, 2^1383663265 is an apocalyptic number.

It is an amenable number.

1383663265 is a deficient number, since it is larger than the sum of its proper divisors (313028831).

1383663265 is a wasteful number, since it uses less digits than its factorization.

1383663265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29960.

The product of its digits is 466560, while the sum is 43.

The square root of 1383663265 is about 37197.6244537202. The cubic root of 1383663265 is about 1114.3205429574.

The spelling of 1383663265 in words is "one billion, three hundred eighty-three million, six hundred sixty-three thousand, two hundred sixty-five".