1383105 has 32 divisors (see below), whose sum is σ = 2442240. Its totient is φ = 665280.

The previous prime is 1383089. The next prime is 1383113. The reversal of 1383105 is 5013831.

1383105 = T₉₄ + T₉₅ + ... + T₂₀₈.

It is a happy number.

It is not a de Polignac number, because 1383105 - 2⁴ = 1383089 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6450 + ... + 6660.

It is an arithmetic number, because the mean of its divisors is an integer number (76320).

2^1383105 is an apocalyptic number.

1383105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1383105 is a deficient number, since it is larger than the sum of its proper divisors (1059135).

1383105 is a wasteful number, since it uses less digits than its factorization.

1383105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1383105 is about 1176.0548456598. The cubic root of 1383105 is about 111.4170658262.

Adding to 1383105 its reverse (5013831), we get a palindrome (6396936).

The spelling of 1383105 in words is "one million, three hundred eighty-three thousand, one hundred five".