1383005 has 8 divisors (see below), whose sum is σ = 1787352. Its totient is φ = 1021248.

The previous prime is 1382999. The next prime is 1383037. The reversal of 1383005 is 5003831.

It can be written as a sum of positive squares in 4 ways, for example, as 32761 + 1350244 = 181^2 + 1162^2 .

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 1383005 - 2⁴ = 1382989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10574 + ... + 10703.

It is an arithmetic number, because the mean of its divisors is an integer number (223419).

2^1383005 is an apocalyptic number.

It is an amenable number.

1383005 is a deficient number, since it is larger than the sum of its proper divisors (404347).

1383005 is a wasteful number, since it uses less digits than its factorization.

1383005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21295.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1383005 is about 1176.0123298673. The cubic root of 1383005 is about 111.4143805697.

Adding to 1383005 its reverse (5003831), we get a palindrome (6386836).

The spelling of 1383005 in words is "one million, three hundred eighty-three thousand, five".