1383091 has 4 divisors (see below), whose sum is σ = 1386000. Its totient is φ = 1380184.

The previous prime is 1383089. The next prime is 1383113. The reversal of 1383091 is 1903831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1903831 = 1163 ⋅1637.

It is a cyclic number.

It is not a de Polignac number, because 1383091 - 2¹ = 1383089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1383191) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 556 + ... + 1753.

It is an arithmetic number, because the mean of its divisors is an integer number (346500).

2^1383091 is an apocalyptic number.

1383091 is a deficient number, since it is larger than the sum of its proper divisors (2909).

1383091 is an equidigital number, since it uses as much as digits as its factorization.

1383091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1383091 is about 1176.0488935414. The cubic root of 1383091 is about 111.4166898981.

The spelling of 1383091 in words is "one million, three hundred eighty-three thousand, ninety-one".