1128319 has 4 divisors (see below), whose sum is σ = 1133280. Its totient is φ = 1123360.

The previous prime is 1128313. The next prime is 1128349. The reversal of 1128319 is 9138211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9138211 = 31 ⋅294781.

It is a cyclic number.

It is not a de Polignac number, because 1128319 - 2⁵ = 1128287 is a prime.

It is a super-2 number, since 2×1128319² = 2546207531522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1128293 and 1128302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2122 + ... + 2599.

It is an arithmetic number, because the mean of its divisors is an integer number (283320).

2^1128319 is an apocalyptic number.

1128319 is a deficient number, since it is larger than the sum of its proper divisors (4961).

1128319 is an equidigital number, since it uses as much as digits as its factorization.

1128319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960.

The product of its digits is 432, while the sum is 25.

The square root of 1128319 is about 1062.2236111102. The cubic root of 1128319 is about 104.1063692277.

The spelling of 1128319 in words is "one million, one hundred twenty-eight thousand, three hundred nineteen".