1138583 has 4 divisors (see below), whose sum is σ = 1141440. Its totient is φ = 1135728.

The previous prime is 1138567. The next prime is 1138589. The reversal of 1138583 is 3858311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1138583 - 2⁴ = 1138567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138589) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 710 + ... + 1667.

It is an arithmetic number, because the mean of its divisors is an integer number (285360).

2^1138583 is an apocalyptic number.

1138583 is a deficient number, since it is larger than the sum of its proper divisors (2857).

1138583 is an equidigital number, since it uses as much as digits as its factorization.

1138583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856.

The product of its digits is 2880, while the sum is 29.

The square root of 1138583 is about 1067.0440478256. The cubic root of 1138583 is about 104.4210922676.

The spelling of 1138583 in words is "one million, one hundred thirty-eight thousand, five hundred eighty-three".