1383812965 has 8 divisors (see below), whose sum is σ = 1660907160. Its totient is φ = 1106829312.

The previous prime is 1383812929. The next prime is 1383812977. The reversal of 1383812965 is 5692183831.

It can be written as a sum of positive squares in 4 ways, for example, as 56085121 + 1327727844 = 7489^2 + 36438^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1383812965 - 2⁹ = 1383812453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2997 + ... + 52693.

It is an arithmetic number, because the mean of its divisors is an integer number (207613395).

Almost surely, 2^1383812965 is an apocalyptic number.

It is an amenable number.

1383812965 is a deficient number, since it is larger than the sum of its proper divisors (277094195).

1383812965 is an equidigital number, since it uses as much as digits as its factorization.

1383812965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55271.

The product of its digits is 311040, while the sum is 46.

The square root of 1383812965 is about 37199.6366245693. The cubic root of 1383812965 is about 1114.3607280164.

The spelling of 1383812965 in words is "one billion, three hundred eighty-three million, eight hundred twelve thousand, nine hundred sixty-five".